Responding to the climate threat: essays on humanity’s greatest challenge by Gary Yohe, Henry Jacoby, Richard Richels and Benjamin Santer

Springer Cham, 2023, 194 pp., ISBN 978-3-030-96371-2, ISBN 978-3-030-96372-9

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  • Volume 44 , pages 507–510, ( 2023 )

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Yohe G, Jacoby H, Richels R, Santer B. Responding to the climate threat: essays on humanity’s greatest challenge. Cham: Springer; 2023. p. 194. https://doi.org/10.1007/978-3-030-96372-9 .

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Naumova EN. Intellectual humility in public health training, research, and practice. J Public Health Policy. 2023;44(1):1–5. https://doi.org/10.1057/s41271-022-00389-z .

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Becquart N, Naumova EN, Singh G, Chui K. Cardiovascular disease hospitalizations in Louisiana parishes’ elderly before, during and after Hurricane Katrina. Int J Environ Res Public Health. 2018;16(1):74. https://doi.org/10.3390/ijerph16010074 .

Robbins A. How to understand the results of the climate change summit: Conference of Parties21 (COP21) Paris 2015. J Public Health Policy. 2016;37(2):129–32. https://doi.org/10.1057/jphp.2015.47 .

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Naumova, E.N. Responding to the climate threat: essays on humanity’s greatest challenge by Gary Yohe, Henry Jacoby, Richard Richels and Benjamin Santer. J Public Health Pol 44 , 507–510 (2023). https://doi.org/10.1057/s41271-023-00424-7

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November 26, 2007

10 Solutions for Climate Change

Ten possibilities for staving off catastrophic climate change

By David Biello

climate change problems and solutions essay pdf

Mark Garlick Getty Images

The enormity of global warming can be daunting and dispiriting. What can one person, or even one nation, do on their own to slow and reverse climate change ? But just as ecologist Stephen Pacala and physicist Robert Socolow, both at Princeton University, came up with 15 so-called " wedges " for nations to utilize toward this goal—each of which is challenging but feasible and, in some combination, could reduce greenhouse gas emissions to safer levels —there are personal lifestyle changes that you can make too that, in some combination, can help reduce your carbon impact. Not all are right for everybody. Some you may already be doing or absolutely abhor. But implementing just a few of them could make a difference.

Forego Fossil Fuels —The first challenge is eliminating the burning of coal , oil and, eventually, natural gas. This is perhaps the most daunting challenge as denizens of richer nations literally eat, wear, work, play and even sleep on the products made from such fossilized sunshine. And citizens of developing nations want and arguably deserve the same comforts, which are largely thanks to the energy stored in such fuels.

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Oil is the lubricant of the global economy, hidden inside such ubiquitous items as plastic and corn, and fundamental to the transportation of both consumers and goods. Coal is the substrate, supplying roughly half of the electricity used in the U.S. and nearly that much worldwide—a percentage that is likely to grow, according to the International Energy Agency. There are no perfect solutions for reducing dependence on fossil fuels (for example, carbon neutral biofuels can drive up the price of food and lead to forest destruction, and while nuclear power does not emit greenhouse gases, it does produce radioactive waste), but every bit counts.

So try to employ alternatives when possible—plant-derived plastics, biodiesel, wind power—and to invest in the change, be it by divesting from oil stocks or investing in companies practicing carbon capture and storage.

Infrastructure Upgrade —Buildings worldwide contribute around one third of all greenhouse gas emissions (43 percent in the U.S. alone), even though investing in thicker insulation and other cost-effective, temperature-regulating steps can save money in the long run. Electric grids are at capacity or overloaded, but power demands continue to rise. And bad roads can lower the fuel economy of even the most efficient vehicle. Investing in new infrastructure, or radically upgrading existing highways and transmission lines, would help cut greenhouse gas emissions and drive economic growth in developing countries.

Of course, it takes a lot of cement, a major source of greenhouse gas emissions, to construct new buildings and roads. The U.S. alone contributed 50.7 million metric tons of carbon dioxide to the atmosphere in 2005 from cement production, which requires heating limestone and other ingredients to 1,450 degrees Celsius (2,642 degrees Fahrenheit). Mining copper and other elements needed for electrical wiring and transmission also causes globe-warming pollution.

But energy-efficient buildings and improved cement-making processes (such as using alternative fuels to fire up the kiln) could reduce greenhouse gas emissions in the developed world and prevent them in the developing world.

Move Closer to Work —Transportation is the second leading source of greenhouse gas emissions in the U.S. (burning a single gallon of gasoline produces 20 pounds of CO 2 ). But it doesn't have to be that way.

One way to dramatically curtail transportation fuel needs is to move closer to work, use mass transit, or switch to walking, cycling or some other mode of transport that does not require anything other than human energy. There is also the option of working from home and telecommuting several days a week.

Cutting down on long-distance travel would also help, most notably airplane flights, which are one of the fastest growing sources of greenhouse gas emissions and a source that arguably releases such emissions in the worst possible spot (higher in the atmosphere). Flights are also one of the few sources of globe-warming pollution for which there isn't already a viable alternative: jets rely on kerosene, because it packs the most energy per pound, allowing them to travel far and fast, yet it takes roughly 10 gallons of oil to make one gallon of JetA fuel. Restricting flying to only critical, long-distance trips—in many parts of the world, trains can replace planes for short- to medium-distance trips—would help curb airplane emissions.

Consume Less —The easiest way to cut back on greenhouse gas emissions is simply to buy less stuff. Whether by forgoing an automobile or employing a reusable grocery sack, cutting back on consumption results in fewer fossil fuels being burned to extract, produce and ship products around the globe.

Think green when making purchases. For instance, if you are in the market for a new car, buy one that will last the longest and have the least impact on the environment. Thus, a used vehicle with a hybrid engine offers superior fuel efficiency over the long haul while saving the environmental impact of new car manufacture.

Paradoxically, when purchasing essentials, such as groceries, buying in bulk can reduce the amount of packaging—plastic wrapping, cardboard boxes and other unnecessary materials. Sometimes buying more means consuming less.

Be Efficient —A potentially simpler and even bigger impact can be made by doing more with less. Citizens of many developed countries are profligate wasters of energy, whether by speeding in a gas-guzzling sport-utility vehicle or leaving the lights on when not in a room.

Good driving—and good car maintenance, such as making sure tires are properly inflated—can limit the amount of greenhouse gas emissions from a vehicle and, perhaps more importantly, lower the frequency of payment at the pump.

Similarly, employing more efficient refrigerators, air conditioners and other appliances, such as those rated highly under the U.S. Environmental Protection Agency's Energy Star program, can cut electric bills while something as simple as weatherproofing the windows of a home can reduce heating and cooling bills. Such efforts can also be usefully employed at work, whether that means installing more efficient turbines at the power plant or turning the lights off when you leave the office .

Eat Smart, Go Vegetarian? —Corn grown in the U.S. requires barrels of oil for the fertilizer to grow it and the diesel fuel to harvest and transport it. Some grocery stores stock organic produce that do not require such fertilizers, but it is often shipped from halfway across the globe. And meat, whether beef, chicken or pork, requires pounds of feed to produce a pound of protein.

Choosing food items that balance nutrition, taste and ecological impact is no easy task. Foodstuffs often bear some nutritional information, but there is little to reveal how far a head of lettuce, for example, has traveled.

University of Chicago researchers estimate that each meat-eating American produces 1.5 tons more greenhouse gases through their food choice than do their vegetarian peers. It would also take far less land to grow the crops necessary to feed humans than livestock, allowing more room for planting trees.

Stop Cutting Down Trees —Every year, 33 million acres of forests are cut down . Timber harvesting in the tropics alone contributes 1.5 billion metric tons of carbon to the atmosphere. That represents 20 percent of human-made greenhouse gas emissions and a source that could be avoided relatively easily.

Improved agricultural practices along with paper recycling and forest management—balancing the amount of wood taken out with the amount of new trees growing—could quickly eliminate this significant chunk of emissions.

And when purchasing wood products, such as furniture or flooring, buy used goods or, failing that, wood certified to have been sustainably harvested. The Amazon and other forests are not just the lungs of the earth, they may also be humanity's best short-term hope for limiting climate change.

Unplug —Believe it or not, U.S. citizens spend more money on electricity to power devices when off than when on. Televisions, stereo equipment, computers, battery chargers and a host of other gadgets and appliances consume more energy when seemingly switched off, so unplug them instead.

Purchasing energy-efficient gadgets can also save both energy and money—and thus prevent more greenhouse gas emissions. To take but one example, efficient battery chargers could save more than one billion kilowatt-hours of electricity—$100 million at today's electricity prices—and thus prevent the release of more than one million metric tons of greenhouse gases.

Swapping old incandescent lightbulbs for more efficient replacements, such as compact fluorescents (warning: these lightbulbs contain mercury and must be properly disposed of at the end of their long life), would save billions of kilowatt-hours. In fact, according to the EPA, replacing just one incandescent lightbulb in every American home would save enough energy to provide electricity to three million American homes.

One Child —There are at least 6.6 billion people living today, a number that is predicted by the United Nations to grow to at least nine billion by mid-century. The U.N. Environmental Program estimates that it requires 54 acres to sustain an average human being today—food, clothing and other resources extracted from the planet. Continuing such population growth seems unsustainable.

Falling birth rates in some developed and developing countries (a significant portion of which are due to government-imposed limits on the number of children a couple can have) have begun to reduce or reverse the population explosion. It remains unclear how many people the planet can comfortably sustain, but it is clear that per capita energy consumption must go down if climate change is to be controlled.

Ultimately, a one child per couple rule is not sustainable either and there is no perfect number for human population. But it is clear that more humans means more greenhouse gas emissions.

Future Fuels —Replacing fossil fuels may prove the great challenge of the 21st century. Many contenders exist, ranging from ethanol derived from crops to hydrogen electrolyzed out of water, but all of them have some drawbacks, too, and none are immediately available at the scale needed.

Biofuels can have a host of negative impacts, from driving up food prices to sucking up more energy than they produce. Hydrogen must be created, requiring either reforming natural gas or electricity to crack water molecules. Biodiesel hybrid electric vehicles (that can plug into the grid overnight) may offer the best transportation solution in the short term, given the energy density of diesel and the carbon neutral ramifications of fuel from plants as well as the emissions of electric engines. A recent study found that the present amount of electricity generation in the U.S. could provide enough energy for the country's entire fleet of automobiles to switch to plug-in hybrids , reducing greenhouse gas emissions in the process.

But plug-in hybrids would still rely on electricity, now predominantly generated by burning dirty coal. Massive investment in low-emission energy generation, whether solar-thermal power or nuclear fission , would be required to radically reduce greenhouse gas emissions. And even more speculative energy sources—hyperefficient photovoltaic cells, solar energy stations in orbit or even fusion—may ultimately be required.

The solutions above offer the outline of a plan to personally avoid contributing to global warming. But should such individual and national efforts fail, there is another, potentially desperate solution:

Experiment Earth —Climate change represents humanity's first planetwide experiment. But, if all else fails, it may not be the last. So-called geoengineering , radical interventions to either block sunlight or reduce greenhouse gases, is a potential last resort for addressing the challenge of climate change.

Among the ideas: releasing sulfate particles in the air to mimic the cooling effects of a massive volcanic eruption; placing millions of small mirrors or lenses in space to deflect sunlight; covering portions of the planet with reflective films to bounce sunlight back into space; fertilizing the oceans with iron or other nutrients to enable plankton to absorb more carbon; and increasing cloud cover or the reflectivity of clouds that already form.

All may have unintended consequences, making the solution worse than the original problem. But it is clear that at least some form of geoengineering will likely be required: capturing carbon dioxide before it is released and storing it in some fashion, either deep beneath the earth, at the bottom of the ocean or in carbonate minerals. Such carbon capture and storage is critical to any serious effort to combat climate change.

Additional reporting by Larry Greenemeier and Nikhil Swaminathan .

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climate change problems and solutions essay pdf

Causes and Effects of Climate Change

Fossil fuels – coal, oil and gas – are by far the largest contributor to global climate change, accounting for over 75 per cent of global greenhouse gas emissions and nearly 90 per cent of all carbon dioxide emissions. As greenhouse gas emissions blanket the Earth, they trap the sun’s heat. This leads to global warming and climate change. The world is now warming faster than at any point in recorded history. Warmer temperatures over time are changing weather patterns and disrupting the usual balance of nature. This poses many risks to human beings and all other forms of life on Earth. 

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Heatwaves put bees at risk

Eleven-year-old Markela is a fifth generation beekeeper, but climate change is making it so that she may not be able to carry on the family tradition. Wildfires, heatwaves, and droughts that are increasing in intensity and frequency due to the climate crisis, put bees and the ecosystems at risk.

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Healing Chile’s Huapi Island

On Chile’s Huapi Island, native forests have become fragmented, making the soils poorer and drier and leaving the population vulnerable to the effects of climate change. Now, thanks to the restoration efforts of Indigenous Peoples, native trees are making a comeback.

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Early warning systems are saving lives in Central Asia

As Central Asia grapples with the increasing frequency and severity of climate-induced hazards, the importance of robust early warning systems cannot be overstated. However, countries need both technical knowledge and resources to effectively implement these systems on a large scale. Japan has been a reliable ally for countries, helping advance early warning systems and increase resilience in the region.

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Climate change: a threat to human wellbeing and health of the planet. taking action now can secure our future.

BERLIN, Feb 28 – Human-induced climate change is causing dangerous and widespread disruption in nature and affecting the lives of billions of people around the world, despite efforts to reduce the risks. People and ecosystems least able to cope are being hardest hit, said scientists in the latest Intergovernmental Panel on Climate Change (IPCC) report, released today.

“This report is a dire warning about the consequences of inaction,” said Hoesung Lee, Chair of the IPCC. “It shows that climate change is a grave and mounting threat to our wellbeing and a healthy planet. Our actions today will shape how people adapt and nature responds to increasing climate risks.”

The world faces unavoidable multiple climate hazards over the next two decades with global warming of 1.5°C (2.7°F). Even temporarily exceeding this warming level will result in additional severe impacts, some of which will be irreversible. Risks for society will increase, including to infrastructure and low-lying coastal settlements.

The Summary for Policymakers of the IPCC Working Group II report,  Climate Change 2022: Impacts, Adaptation and Vulnerability was approved on Sunday, February 27 2022, by 195 member governments of the IPCC, through a virtual approval session that was held over two weeks starting on February 14.

Urgent action required to deal with increasing risks

Increased heatwaves, droughts and floods are already exceeding plants’ and animals’ tolerance thresholds, driving mass mortalities in species such as trees and corals. These weather extremes are occurring simultaneously, causing cascading impacts that are increasingly difficult to manage. They have exposed millions of people to acute food and water insecurity, especially in Africa, Asia, Central and South America, on Small Islands and in the Arctic.

To avoid mounting loss of life, biodiversity and infrastructure, ambitious, accelerated action is required to adapt to climate change, at the same time as making rapid, deep cuts in greenhouse gas emissions. So far, progress on adaptation is uneven and there are increasing gaps between action taken and what is needed to deal with the increasing risks, the new report finds. These gaps are largest among lower-income populations. 

The Working Group II report is the second instalment of the IPCC’s Sixth Assessment Report (AR6), which will be completed this year.

“This report recognizes the interdependence of climate, biodiversity and people and integrates natural, social and economic sciences more strongly than earlier IPCC assessments,” said Hoesung Lee. “It emphasizes the urgency of immediate and more ambitious action to address climate risks. Half measures are no longer an option.”

Safeguarding and strengthening nature is key to securing a liveable future

There are options to adapt to a changing climate. This report provides new insights into nature’s potential not only to reduce climate risks but also to improve people’s lives.

“Healthy ecosystems are more resilient to climate change and provide life-critical services such as food and clean water”, said IPCC Working Group II Co-Chair Hans-Otto Pörtner. “By restoring degraded ecosystems and effectively and equitably conserving 30 to 50 per cent of Earth’s land, freshwater and ocean habitats, society can benefit from nature’s capacity to absorb and store carbon, and we can accelerate progress towards sustainable development, but adequate finance and political support are essential.”

Scientists point out that climate change interacts with global trends such as unsustainable use of natural resources, growing urbanization, social inequalities, losses and damages from extreme events and a pandemic, jeopardizing future development.

“Our assessment clearly shows that tackling all these different challenges involves everyone – governments, the private sector, civil society – working together to prioritize risk reduction, as well as equity and justice, in decision-making and investment,” said IPCC Working Group II Co-Chair Debra Roberts.

“In this way, different interests, values and world views can be reconciled. By bringing together scientific and technological know-how as well as Indigenous and local knowledge, solutions will be more effective. Failure to achieve climate resilient and sustainable development will result in a sub-optimal future for people and nature.”

Cities: Hotspots of impacts and risks, but also a crucial part of the solution

This report provides a detailed assessment of climate change impacts, risks and adaptation in cities, where more than half the world’s population lives. People’s health, lives and livelihoods, as well as property and critical infrastructure, including energy and transportation systems, are being increasingly adversely affected by hazards from heatwaves, storms, drought and flooding as well as slow-onset changes, including sea level rise.

“Together, growing urbanization and climate change create complex risks, especially for those cities that already experience poorly planned urban growth, high levels of poverty and unemployment, and a lack of basic services,” Debra Roberts said.

“But cities also provide opportunities for climate action – green buildings, reliable supplies of clean water and renewable energy, and sustainable transport systems that connect urban and rural areas can all lead to a more inclusive, fairer society.”

There is increasing evidence of adaptation that has caused unintended consequences, for example destroying nature, putting peoples’ lives at risk or increasing greenhouse gas emissions. This can be avoided by involving everyone in planning, attention to equity and justice, and drawing on Indigenous and local knowledge.

A narrowing window for action

Climate change is a global challenge that requires local solutions and that’s why the Working Group II contribution to the IPCC’s Sixth Assessment Report (AR6) provides extensive regional information to enable Climate Resilient Development.

The report clearly states Climate Resilient Development is already challenging at current warming levels. It will become more limited if global warming exceeds 1.5°C (2.7°F). In some regions it will be impossible if global warming exceeds 2°C (3.6°F). This key finding underlines the urgency for climate action, focusing on equity and justice. Adequate funding, technology transfer, political commitment and partnership lead to more effective climate change adaptation and emissions reductions.

“The scientific evidence is unequivocal: climate change is a threat to human wellbeing and the health of the planet. Any further delay in concerted global action will miss a brief and rapidly closing window to secure a liveable future,” said Hans-Otto Pörtner.

For more information, please contact:

IPCC Press Office, Email: [email protected]   IPCC Working Group II:  Sina Löschke,  Komila Nabiyeva: [email protected]

Notes for Editors

Climate Change 2022: Impacts, Adaptation and Vulnerability. Contribution of Working Group II to the Sixth Assessment Report of the Intergovernmental Panel on Climate Change

The Working Group II report examines the impacts of climate change on nature and people around the globe. It explores future impacts at different levels of warming and the resulting risks and offers options to strengthen nature’s and society’s resilience to ongoing climate change, to fight hunger, poverty, and inequality and keep Earth a place worth living on – for current as well as for future generations. 

Working Group II introduces several new components in its latest report: One is a special section on climate change impacts, risks and options to act for cities and settlements by the sea, tropical forests, mountains, biodiversity hotspots, dryland and deserts, the Mediterranean as well as the polar regions. Another is an atlas that will present data and findings on observed and projected climate change impacts and risks from global to regional scales, thus offering even more insights for decision makers.

The Summary for Policymakers of the Working Group II contribution to the Sixth Assessment Report (AR6) as well as additional materials and information are available at https://www.ipcc.ch/report/ar6/wg2/

Note : Originally scheduled for release in September 2021, the report was delayed for several months by the COVID-19 pandemic, as work in the scientific community including the IPCC shifted online. This is the second time that the IPCC has conducted a virtual approval session for one of its reports.

AR6 Working Group II in numbers

270 authors from 67 countries

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Over 34,000 cited references

A total of 62,418 expert and government review comments

(First Order Draft 16,348; Second Order Draft 40,293; Final Government Distribution: 5,777)

More information about the Sixth Assessment Report can be found  here .

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Press conference recording, collection of sound bites from WGII authors, link to presentation slides, B-roll of approval session, link to launch Trello board including press release and video trailer in UN languages, a social media pack.

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About the IPCC

The Intergovernmental Panel on Climate Change (IPCC) is the UN body for assessing the science related to climate change. It was established by the United Nations Environment Programme (UNEP) and the World Meteorological Organization (WMO) in 1988 to provide political leaders with periodic scientific assessments concerning climate change, its implications and risks, as well as to put forward adaptation and mitigation strategies. In the same year the UN General Assembly endorsed the action by the WMO and UNEP in jointly establishing the IPCC. It has 195 member states.

Thousands of people from all over the world contribute to the work of the IPCC. For the assessment reports, IPCC scientists volunteer their time to assess the thousands of scientific papers published each year to provide a comprehensive summary of what is known about the drivers of climate change, its impacts and future risks, and how adaptation and mitigation can reduce those risks.

The IPCC has three working groups:  Working Group I , dealing with the physical science basis of climate change;  Working Group II , dealing with impacts, adaptation and vulnerability; and  Working Group III , dealing with the mitigation of climate change. It also has a  Task Force on National Greenhouse Gas Inventories  that develops methodologies for measuring emissions and removals. As part of the IPCC, a Task Group on Data Support for Climate Change Assessments (TG-Data) provides guidance to the Data Distribution Centre (DDC) on curation, traceability, stability, availability and transparency of data and scenarios related to the reports of the IPCC.

IPCC assessments provide governments, at all levels, with scientific information that they can use to develop climate policies. IPCC assessments are a key input into the international negotiations to tackle climate change. IPCC reports are drafted and reviewed in several stages, thus guaranteeing objectivity and transparency. An IPCC assessment report consists of the contributions of the three working groups and a Synthesis Report. The Synthesis Report integrates the findings of the three working group reports and of any special reports prepared in that assessment cycle.

About the Sixth Assessment Cycle

At its 41st Session in February 2015, the IPCC decided to produce a Sixth Assessment Report (AR6). At its 42nd Session in October 2015 it elected a new Bureau that would oversee the work on this report and the Special Reports to be produced in the assessment cycle.

Global Warming of 1.5°C , an IPCC special report on the impacts of global warming of 1.5 degrees Celsius above pre-industrial levels and related global greenhouse gas emission pathways, in the context of strengthening the global response to the threat of climate change, sustainable development, and efforts to eradicate poverty  was launched in October 2018.

Climate Change and Land , an IPCC special report on climate change, desertification, land degradation, sustainable land management, food security, and greenhouse gas fluxes in terrestrial ecosystems  was launched in August 2019, and the  Special Report on the Ocean and Cryosphere in a Changing Climate  was released in September 2019.

In May 2019 the IPCC released the  2019 Refinement to the 2006 IPCC Guidelines for National Greenhouse Gas Inventories , an update to the methodology used by governments to estimate their greenhouse gas emissions and removals.

In August 2021 the IPCC released the Working Group I contribution to the AR6, Climate Change 2021, the Physical Science Basis

The Working Group III contribution to the AR6 is scheduled for early April 2022.

The Synthesis Report of the Sixth Assessment Report will be completed in the second half of 2022.

For more information go to  www.ipcc.ch

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A review of the global climate change impacts, adaptation, and sustainable mitigation measures

Kashif abbass.

1 School of Economics and Management, Nanjing University of Science and Technology, Nanjing, 210094 People’s Republic of China

Muhammad Zeeshan Qasim

2 Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Xiaolingwei 200, Nanjing, 210094 People’s Republic of China

Huaming Song

Muntasir murshed.

3 School of Business and Economics, North South University, Dhaka, 1229 Bangladesh

4 Department of Journalism, Media and Communications, Daffodil International University, Dhaka, Bangladesh

Haider Mahmood

5 Department of Finance, College of Business Administration, Prince Sattam Bin Abdulaziz University, 173, Alkharj, 11942 Saudi Arabia

Ijaz Younis

Associated data.

Data sources and relevant links are provided in the paper to access data.

Climate change is a long-lasting change in the weather arrays across tropics to polls. It is a global threat that has embarked on to put stress on various sectors. This study is aimed to conceptually engineer how climate variability is deteriorating the sustainability of diverse sectors worldwide. Specifically, the agricultural sector’s vulnerability is a globally concerning scenario, as sufficient production and food supplies are threatened due to irreversible weather fluctuations. In turn, it is challenging the global feeding patterns, particularly in countries with agriculture as an integral part of their economy and total productivity. Climate change has also put the integrity and survival of many species at stake due to shifts in optimum temperature ranges, thereby accelerating biodiversity loss by progressively changing the ecosystem structures. Climate variations increase the likelihood of particular food and waterborne and vector-borne diseases, and a recent example is a coronavirus pandemic. Climate change also accelerates the enigma of antimicrobial resistance, another threat to human health due to the increasing incidence of resistant pathogenic infections. Besides, the global tourism industry is devastated as climate change impacts unfavorable tourism spots. The methodology investigates hypothetical scenarios of climate variability and attempts to describe the quality of evidence to facilitate readers’ careful, critical engagement. Secondary data is used to identify sustainability issues such as environmental, social, and economic viability. To better understand the problem, gathered the information in this report from various media outlets, research agencies, policy papers, newspapers, and other sources. This review is a sectorial assessment of climate change mitigation and adaptation approaches worldwide in the aforementioned sectors and the associated economic costs. According to the findings, government involvement is necessary for the country’s long-term development through strict accountability of resources and regulations implemented in the past to generate cutting-edge climate policy. Therefore, mitigating the impacts of climate change must be of the utmost importance, and hence, this global threat requires global commitment to address its dreadful implications to ensure global sustenance.

Introduction

Worldwide observed and anticipated climatic changes for the twenty-first century and global warming are significant global changes that have been encountered during the past 65 years. Climate change (CC) is an inter-governmental complex challenge globally with its influence over various components of the ecological, environmental, socio-political, and socio-economic disciplines (Adger et al.  2005 ; Leal Filho et al.  2021 ; Feliciano et al.  2022 ). Climate change involves heightened temperatures across numerous worlds (Battisti and Naylor  2009 ; Schuurmans  2021 ; Weisheimer and Palmer  2005 ; Yadav et al.  2015 ). With the onset of the industrial revolution, the problem of earth climate was amplified manifold (Leppänen et al.  2014 ). It is reported that the immediate attention and due steps might increase the probability of overcoming its devastating impacts. It is not plausible to interpret the exact consequences of climate change (CC) on a sectoral basis (Izaguirre et al.  2021 ; Jurgilevich et al.  2017 ), which is evident by the emerging level of recognition plus the inclusion of climatic uncertainties at both local and national level of policymaking (Ayers et al.  2014 ).

Climate change is characterized based on the comprehensive long-haul temperature and precipitation trends and other components such as pressure and humidity level in the surrounding environment. Besides, the irregular weather patterns, retreating of global ice sheets, and the corresponding elevated sea level rise are among the most renowned international and domestic effects of climate change (Lipczynska-Kochany  2018 ; Michel et al.  2021 ; Murshed and Dao 2020 ). Before the industrial revolution, natural sources, including volcanoes, forest fires, and seismic activities, were regarded as the distinct sources of greenhouse gases (GHGs) such as CO 2 , CH 4 , N 2 O, and H 2 O into the atmosphere (Murshed et al. 2020 ; Hussain et al.  2020 ; Sovacool et al.  2021 ; Usman and Balsalobre-Lorente 2022 ; Murshed 2022 ). United Nations Framework Convention on Climate Change (UNFCCC) struck a major agreement to tackle climate change and accelerate and intensify the actions and investments required for a sustainable low-carbon future at Conference of the Parties (COP-21) in Paris on December 12, 2015. The Paris Agreement expands on the Convention by bringing all nations together for the first time in a single cause to undertake ambitious measures to prevent climate change and adapt to its impacts, with increased funding to assist developing countries in doing so. As so, it marks a turning point in the global climate fight. The core goal of the Paris Agreement is to improve the global response to the threat of climate change by keeping the global temperature rise this century well below 2 °C over pre-industrial levels and to pursue efforts to limit the temperature increase to 1.5° C (Sharma et al. 2020 ; Sharif et al. 2020 ; Chien et al. 2021 .

Furthermore, the agreement aspires to strengthen nations’ ability to deal with the effects of climate change and align financing flows with low GHG emissions and climate-resilient paths (Shahbaz et al. 2019 ; Anwar et al. 2021 ; Usman et al. 2022a ). To achieve these lofty goals, adequate financial resources must be mobilized and provided, as well as a new technology framework and expanded capacity building, allowing developing countries and the most vulnerable countries to act under their respective national objectives. The agreement also establishes a more transparent action and support mechanism. All Parties are required by the Paris Agreement to do their best through “nationally determined contributions” (NDCs) and to strengthen these efforts in the coming years (Balsalobre-Lorente et al. 2020 ). It includes obligations that all Parties regularly report on their emissions and implementation activities. A global stock-take will be conducted every five years to review collective progress toward the agreement’s goal and inform the Parties’ future individual actions. The Paris Agreement became available for signature on April 22, 2016, Earth Day, at the United Nations Headquarters in New York. On November 4, 2016, it went into effect 30 days after the so-called double threshold was met (ratification by 55 nations accounting for at least 55% of world emissions). More countries have ratified and continue to ratify the agreement since then, bringing 125 Parties in early 2017. To fully operationalize the Paris Agreement, a work program was initiated in Paris to define mechanisms, processes, and recommendations on a wide range of concerns (Murshed et al. 2021 ). Since 2016, Parties have collaborated in subsidiary bodies (APA, SBSTA, and SBI) and numerous formed entities. The Conference of the Parties functioning as the meeting of the Parties to the Paris Agreement (CMA) convened for the first time in November 2016 in Marrakesh in conjunction with COP22 and made its first two resolutions. The work plan is scheduled to be finished by 2018. Some mitigation and adaptation strategies to reduce the emission in the prospective of Paris agreement are following firstly, a long-term goal of keeping the increase in global average temperature to well below 2 °C above pre-industrial levels, secondly, to aim to limit the rise to 1.5 °C, since this would significantly reduce risks and the impacts of climate change, thirdly, on the need for global emissions to peak as soon as possible, recognizing that this will take longer for developing countries, lastly, to undertake rapid reductions after that under the best available science, to achieve a balance between emissions and removals in the second half of the century. On the other side, some adaptation strategies are; strengthening societies’ ability to deal with the effects of climate change and to continue & expand international assistance for developing nations’ adaptation.

However, anthropogenic activities are currently regarded as most accountable for CC (Murshed et al. 2022 ). Apart from the industrial revolution, other anthropogenic activities include excessive agricultural operations, which further involve the high use of fuel-based mechanization, burning of agricultural residues, burning fossil fuels, deforestation, national and domestic transportation sectors, etc. (Huang et al.  2016 ). Consequently, these anthropogenic activities lead to climatic catastrophes, damaging local and global infrastructure, human health, and total productivity. Energy consumption has mounted GHGs levels concerning warming temperatures as most of the energy production in developing countries comes from fossil fuels (Balsalobre-Lorente et al. 2022 ; Usman et al. 2022b ; Abbass et al. 2021a ; Ishikawa-Ishiwata and Furuya  2022 ).

This review aims to highlight the effects of climate change in a socio-scientific aspect by analyzing the existing literature on various sectorial pieces of evidence globally that influence the environment. Although this review provides a thorough examination of climate change and its severe affected sectors that pose a grave danger for global agriculture, biodiversity, health, economy, forestry, and tourism, and to purpose some practical prophylactic measures and mitigation strategies to be adapted as sound substitutes to survive from climate change (CC) impacts. The societal implications of irregular weather patterns and other effects of climate changes are discussed in detail. Some numerous sustainable mitigation measures and adaptation practices and techniques at the global level are discussed in this review with an in-depth focus on its economic, social, and environmental aspects. Methods of data collection section are included in the supplementary information.

Review methodology

Related study and its objectives.

Today, we live an ordinary life in the beautiful digital, globalized world where climate change has a decisive role. What happens in one country has a massive influence on geographically far apart countries, which points to the current crisis known as COVID-19 (Sarkar et al.  2021 ). The most dangerous disease like COVID-19 has affected the world’s climate changes and economic conditions (Abbass et al. 2022 ; Pirasteh-Anosheh et al.  2021 ). The purpose of the present study is to review the status of research on the subject, which is based on “Global Climate Change Impacts, adaptation, and sustainable mitigation measures” by systematically reviewing past published and unpublished research work. Furthermore, the current study seeks to comment on research on the same topic and suggest future research on the same topic. Specifically, the present study aims: The first one is, organize publications to make them easy and quick to find. Secondly, to explore issues in this area, propose an outline of research for future work. The third aim of the study is to synthesize the previous literature on climate change, various sectors, and their mitigation measurement. Lastly , classify the articles according to the different methods and procedures that have been adopted.

Review methodology for reviewers

This review-based article followed systematic literature review techniques that have proved the literature review as a rigorous framework (Benita  2021 ; Tranfield et al.  2003 ). Moreover, we illustrate in Fig.  1 the search method that we have started for this research. First, finalized the research theme to search literature (Cooper et al.  2018 ). Second, used numerous research databases to search related articles and download from the database (Web of Science, Google Scholar, Scopus Index Journals, Emerald, Elsevier Science Direct, Springer, and Sciverse). We focused on various articles, with research articles, feedback pieces, short notes, debates, and review articles published in scholarly journals. Reports used to search for multiple keywords such as “Climate Change,” “Mitigation and Adaptation,” “Department of Agriculture and Human Health,” “Department of Biodiversity and Forestry,” etc.; in summary, keyword list and full text have been made. Initially, the search for keywords yielded a large amount of literature.

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Methodology search for finalized articles for investigations.

Source : constructed by authors

Since 2020, it has been impossible to review all the articles found; some restrictions have been set for the literature exhibition. The study searched 95 articles on a different database mentioned above based on the nature of the study. It excluded 40 irrelevant papers due to copied from a previous search after readings tiles, abstract and full pieces. The criteria for inclusion were: (i) articles focused on “Global Climate Change Impacts, adaptation, and sustainable mitigation measures,” and (ii) the search key terms related to study requirements. The complete procedure yielded 55 articles for our study. We repeat our search on the “Web of Science and Google Scholars” database to enhance the search results and check the referenced articles.

In this study, 55 articles are reviewed systematically and analyzed for research topics and other aspects, such as the methods, contexts, and theories used in these studies. Furthermore, this study analyzes closely related areas to provide unique research opportunities in the future. The study also discussed future direction opportunities and research questions by understanding the research findings climate changes and other affected sectors. The reviewed paper framework analysis process is outlined in Fig.  2 .

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Framework of the analysis Process.

Natural disasters and climate change’s socio-economic consequences

Natural and environmental disasters can be highly variable from year to year; some years pass with very few deaths before a significant disaster event claims many lives (Symanski et al.  2021 ). Approximately 60,000 people globally died from natural disasters each year on average over the past decade (Ritchie and Roser  2014 ; Wiranata and Simbolon  2021 ). So, according to the report, around 0.1% of global deaths. Annual variability in the number and share of deaths from natural disasters in recent decades are shown in Fig.  3 . The number of fatalities can be meager—sometimes less than 10,000, and as few as 0.01% of all deaths. But shock events have a devastating impact: the 1983–1985 famine and drought in Ethiopia; the 2004 Indian Ocean earthquake and tsunami; Cyclone Nargis, which struck Myanmar in 2008; and the 2010 Port-au-Prince earthquake in Haiti and now recent example is COVID-19 pandemic (Erman et al.  2021 ). These events pushed global disaster deaths to over 200,000—more than 0.4% of deaths in these years. Low-frequency, high-impact events such as earthquakes and tsunamis are not preventable, but such high losses of human life are. Historical evidence shows that earlier disaster detection, more robust infrastructure, emergency preparedness, and response programmers have substantially reduced disaster deaths worldwide. Low-income is also the most vulnerable to disasters; improving living conditions, facilities, and response services in these areas would be critical in reducing natural disaster deaths in the coming decades.

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Global deaths from natural disasters, 1978 to 2020.

Source EMDAT ( 2020 )

The interior regions of the continent are likely to be impacted by rising temperatures (Dimri et al.  2018 ; Goes et al.  2020 ; Mannig et al.  2018 ; Schuurmans  2021 ). Weather patterns change due to the shortage of natural resources (water), increase in glacier melting, and rising mercury are likely to cause extinction to many planted species (Gampe et al.  2016 ; Mihiretu et al.  2021 ; Shaffril et al.  2018 ).On the other hand, the coastal ecosystem is on the verge of devastation (Perera et al.  2018 ; Phillips  2018 ). The temperature rises, insect disease outbreaks, health-related problems, and seasonal and lifestyle changes are persistent, with a strong probability of these patterns continuing in the future (Abbass et al. 2021c ; Hussain et al.  2018 ). At the global level, a shortage of good infrastructure and insufficient adaptive capacity are hammering the most (IPCC  2013 ). In addition to the above concerns, a lack of environmental education and knowledge, outdated consumer behavior, a scarcity of incentives, a lack of legislation, and the government’s lack of commitment to climate change contribute to the general public’s concerns. By 2050, a 2 to 3% rise in mercury and a drastic shift in rainfall patterns may have serious consequences (Huang et al. 2022 ; Gorst et al.  2018 ). Natural and environmental calamities caused huge losses globally, such as decreased agriculture outputs, rehabilitation of the system, and rebuilding necessary technologies (Ali and Erenstein  2017 ; Ramankutty et al.  2018 ; Yu et al.  2021 ) (Table ​ (Table1). 1 ). Furthermore, in the last 3 or 4 years, the world has been plagued by smog-related eye and skin diseases, as well as a rise in road accidents due to poor visibility.

Main natural danger statistics for 1985–2020 at the global level

Key natural hazards statistics from 1978 to 2020
Country1978 change2018Absolute changeRelative
Drought630 − 63 − 100%
Earthquake25,1624,321 − 20,841 − 83%
Extreme temperature150536 + 386 + 257%
Extreme weather36761,666 − 2,010 − 55%
Flood5,8972,869 − 3,028 − 51%
Landslide86275 + 189 + 220%
Mass movement5017 − 33 − 66%
Volcanic activity268878 + 610 + 228%
Wildfire2247 + 245 + 12,250%
All − natural disasters35,03610,809 − 24,227 − 69%

Source: EM-DAT ( 2020 )

Climate change and agriculture

Global agriculture is the ultimate sector responsible for 30–40% of all greenhouse emissions, which makes it a leading industry predominantly contributing to climate warming and significantly impacted by it (Grieg; Mishra et al.  2021 ; Ortiz et al.  2021 ; Thornton and Lipper  2014 ). Numerous agro-environmental and climatic factors that have a dominant influence on agriculture productivity (Pautasso et al.  2012 ) are significantly impacted in response to precipitation extremes including floods, forest fires, and droughts (Huang  2004 ). Besides, the immense dependency on exhaustible resources also fuels the fire and leads global agriculture to become prone to devastation. Godfray et al. ( 2010 ) mentioned that decline in agriculture challenges the farmer’s quality of life and thus a significant factor to poverty as the food and water supplies are critically impacted by CC (Ortiz et al.  2021 ; Rosenzweig et al.  2014 ). As an essential part of the economic systems, especially in developing countries, agricultural systems affect the overall economy and potentially the well-being of households (Schlenker and Roberts  2009 ). According to the report published by the Intergovernmental Panel on Climate Change (IPCC), atmospheric concentrations of greenhouse gases, i.e., CH 4, CO 2 , and N 2 O, are increased in the air to extraordinary levels over the last few centuries (Usman and Makhdum 2021 ; Stocker et al.  2013 ). Climate change is the composite outcome of two different factors. The first is the natural causes, and the second is the anthropogenic actions (Karami 2012 ). It is also forecasted that the world may experience a typical rise in temperature stretching from 1 to 3.7 °C at the end of this century (Pachauri et al. 2014 ). The world’s crop production is also highly vulnerable to these global temperature-changing trends as raised temperatures will pose severe negative impacts on crop growth (Reidsma et al. 2009 ). Some of the recent modeling about the fate of global agriculture is briefly described below.

Decline in cereal productivity

Crop productivity will also be affected dramatically in the next few decades due to variations in integral abiotic factors such as temperature, solar radiation, precipitation, and CO 2 . These all factors are included in various regulatory instruments like progress and growth, weather-tempted changes, pest invasions (Cammell and Knight 1992 ), accompanying disease snags (Fand et al. 2012 ), water supplies (Panda et al. 2003 ), high prices of agro-products in world’s agriculture industry, and preeminent quantity of fertilizer consumption. Lobell and field ( 2007 ) claimed that from 1962 to 2002, wheat crop output had condensed significantly due to rising temperatures. Therefore, during 1980–2011, the common wheat productivity trends endorsed extreme temperature events confirmed by Gourdji et al. ( 2013 ) around South Asia, South America, and Central Asia. Various other studies (Asseng, Cao, Zhang, and Ludwig 2009 ; Asseng et al. 2013 ; García et al. 2015 ; Ortiz et al. 2021 ) also proved that wheat output is negatively affected by the rising temperatures and also caused adverse effects on biomass productivity (Calderini et al. 1999 ; Sadras and Slafer 2012 ). Hereafter, the rice crop is also influenced by the high temperatures at night. These difficulties will worsen because the temperature will be rising further in the future owing to CC (Tebaldi et al. 2006 ). Another research conducted in China revealed that a 4.6% of rice production per 1 °C has happened connected with the advancement in night temperatures (Tao et al. 2006 ). Moreover, the average night temperature growth also affected rice indicia cultivar’s output pragmatically during 25 years in the Philippines (Peng et al. 2004 ). It is anticipated that the increase in world average temperature will also cause a substantial reduction in yield (Hatfield et al. 2011 ; Lobell and Gourdji 2012 ). In the southern hemisphere, Parry et al. ( 2007 ) noted a rise of 1–4 °C in average daily temperatures at the end of spring season unti the middle of summers, and this raised temperature reduced crop output by cutting down the time length for phenophases eventually reduce the yield (Hatfield and Prueger 2015 ; R. Ortiz 2008 ). Also, world climate models have recommended that humid and subtropical regions expect to be plentiful prey to the upcoming heat strokes (Battisti and Naylor 2009 ). Grain production is the amalgamation of two constituents: the average weight and the grain output/m 2 , however, in crop production. Crop output is mainly accredited to the grain quantity (Araus et al. 2008 ; Gambín and Borrás 2010 ). In the times of grain set, yield resources are mainly strewn between hitherto defined components, i.e., grain usual weight and grain output, which presents a trade-off between them (Gambín and Borrás 2010 ) beside disparities in per grain integration (B. L. Gambín et al. 2006 ). In addition to this, the maize crop is also susceptible to raised temperatures, principally in the flowering stage (Edreira and Otegui 2013 ). In reality, the lower grain number is associated with insufficient acclimatization due to intense photosynthesis and higher respiration and the high-temperature effect on the reproduction phenomena (Edreira and Otegui 2013 ). During the flowering phase, maize visible to heat (30–36 °C) seemed less anthesis-silking intermissions (Edreira et al. 2011 ). Another research by Dupuis and Dumas ( 1990 ) proved that a drop in spikelet when directly visible to high temperatures above 35 °C in vitro pollination. Abnormalities in kernel number claimed by Vega et al. ( 2001 ) is related to conceded plant development during a flowering phase that is linked with the active ear growth phase and categorized as a critical phase for approximation of kernel number during silking (Otegui and Bonhomme 1998 ).

The retort of rice output to high temperature presents disparities in flowering patterns, and seed set lessens and lessens grain weight (Qasim et al. 2020 ; Qasim, Hammad, Maqsood, Tariq, & Chawla). During the daytime, heat directly impacts flowers which lessens the thesis period and quickens the earlier peak flowering (Tao et al. 2006 ). Antagonistic effect of higher daytime temperature d on pollen sprouting proposed seed set decay, whereas, seed set was lengthily reduced than could be explicated by pollen growing at high temperatures 40◦C (Matsui et al. 2001 ).

The decline in wheat output is linked with higher temperatures, confirmed in numerous studies (Semenov 2009 ; Stone and Nicolas 1994 ). High temperatures fast-track the arrangements of plant expansion (Blum et al. 2001 ), diminution photosynthetic process (Salvucci and Crafts‐Brandner 2004 ), and also considerably affect the reproductive operations (Farooq et al. 2011 ).

The destructive impacts of CC induced weather extremes to deteriorate the integrity of crops (Chaudhary et al. 2011 ), e.g., Spartan cold and extreme fog cause falling and discoloration of betel leaves (Rosenzweig et al. 2001 ), giving them a somehow reddish appearance, squeezing of lemon leaves (Pautasso et al. 2012 ), as well as root rot of pineapple, have reported (Vedwan and Rhoades 2001 ). Henceforth, in tackling the disruptive effects of CC, several short-term and long-term management approaches are the crucial need of time (Fig.  4 ). Moreover, various studies (Chaudhary et al. 2011 ; Patz et al. 2005 ; Pautasso et al. 2012 ) have demonstrated adapting trends such as ameliorating crop diversity can yield better adaptability towards CC.

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Schematic description of potential impacts of climate change on the agriculture sector and the appropriate mitigation and adaptation measures to overcome its impact.

Climate change impacts on biodiversity

Global biodiversity is among the severe victims of CC because it is the fastest emerging cause of species loss. Studies demonstrated that the massive scale species dynamics are considerably associated with diverse climatic events (Abraham and Chain 1988 ; Manes et al. 2021 ; A. M. D. Ortiz et al. 2021 ). Both the pace and magnitude of CC are altering the compatible habitat ranges for living entities of marine, freshwater, and terrestrial regions. Alterations in general climate regimes influence the integrity of ecosystems in numerous ways, such as variation in the relative abundance of species, range shifts, changes in activity timing, and microhabitat use (Bates et al. 2014 ). The geographic distribution of any species often depends upon its ability to tolerate environmental stresses, biological interactions, and dispersal constraints. Hence, instead of the CC, the local species must only accept, adapt, move, or face extinction (Berg et al. 2010 ). So, the best performer species have a better survival capacity for adjusting to new ecosystems or a decreased perseverance to survive where they are already situated (Bates et al. 2014 ). An important aspect here is the inadequate habitat connectivity and access to microclimates, also crucial in raising the exposure to climate warming and extreme heatwave episodes. For example, the carbon sequestration rates are undergoing fluctuations due to climate-driven expansion in the range of global mangroves (Cavanaugh et al. 2014 ).

Similarly, the loss of kelp-forest ecosystems in various regions and its occupancy by the seaweed turfs has set the track for elevated herbivory by the high influx of tropical fish populations. Not only this, the increased water temperatures have exacerbated the conditions far away from the physiological tolerance level of the kelp communities (Vergés et al. 2016 ; Wernberg et al. 2016 ). Another pertinent danger is the devastation of keystone species, which even has more pervasive effects on the entire communities in that habitat (Zarnetske et al. 2012 ). It is particularly important as CC does not specify specific populations or communities. Eventually, this CC-induced redistribution of species may deteriorate carbon storage and the net ecosystem productivity (Weed et al. 2013 ). Among the typical disruptions, the prominent ones include impacts on marine and terrestrial productivity, marine community assembly, and the extended invasion of toxic cyanobacteria bloom (Fossheim et al. 2015 ).

The CC-impacted species extinction is widely reported in the literature (Beesley et al. 2019 ; Urban 2015 ), and the predictions of demise until the twenty-first century are dreadful (Abbass et al. 2019 ; Pereira et al. 2013 ). In a few cases, northward shifting of species may not be formidable as it allows mountain-dwelling species to find optimum climates. However, the migrant species may be trapped in isolated and incompatible habitats due to losing topography and range (Dullinger et al. 2012 ). For example, a study indicated that the American pika has been extirpated or intensely diminished in some regions, primarily attributed to the CC-impacted extinction or at least local extirpation (Stewart et al. 2015 ). Besides, the anticipation of persistent responses to the impacts of CC often requires data records of several decades to rigorously analyze the critical pre and post CC patterns at species and ecosystem levels (Manes et al. 2021 ; Testa et al. 2018 ).

Nonetheless, the availability of such long-term data records is rare; hence, attempts are needed to focus on these profound aspects. Biodiversity is also vulnerable to the other associated impacts of CC, such as rising temperatures, droughts, and certain invasive pest species. For instance, a study revealed the changes in the composition of plankton communities attributed to rising temperatures. Henceforth, alterations in such aquatic producer communities, i.e., diatoms and calcareous plants, can ultimately lead to variation in the recycling of biological carbon. Moreover, such changes are characterized as a potential contributor to CO 2 differences between the Pleistocene glacial and interglacial periods (Kohfeld et al. 2005 ).

Climate change implications on human health

It is an understood corporality that human health is a significant victim of CC (Costello et al. 2009 ). According to the WHO, CC might be responsible for 250,000 additional deaths per year during 2030–2050 (Watts et al. 2015 ). These deaths are attributed to extreme weather-induced mortality and morbidity and the global expansion of vector-borne diseases (Lemery et al. 2021; Yang and Usman 2021 ; Meierrieks 2021 ; UNEP 2017 ). Here, some of the emerging health issues pertinent to this global problem are briefly described.

Climate change and antimicrobial resistance with corresponding economic costs

Antimicrobial resistance (AMR) is an up-surging complex global health challenge (Garner et al. 2019 ; Lemery et al. 2021 ). Health professionals across the globe are extremely worried due to this phenomenon that has critical potential to reverse almost all the progress that has been achieved so far in the health discipline (Gosling and Arnell 2016 ). A massive amount of antibiotics is produced by many pharmaceutical industries worldwide, and the pathogenic microorganisms are gradually developing resistance to them, which can be comprehended how strongly this aspect can shake the foundations of national and global economies (UNEP 2017 ). This statement is supported by the fact that AMR is not developing in a particular region or country. Instead, it is flourishing in every continent of the world (WHO 2018 ). This plague is heavily pushing humanity to the post-antibiotic era, in which currently antibiotic-susceptible pathogens will once again lead to certain endemics and pandemics after being resistant(WHO 2018 ). Undesirably, if this statement would become a factuality, there might emerge certain risks in undertaking sophisticated interventions such as chemotherapy, joint replacement cases, and organ transplantation (Su et al. 2018 ). Presently, the amplification of drug resistance cases has made common illnesses like pneumonia, post-surgical infections, HIV/AIDS, tuberculosis, malaria, etc., too difficult and costly to be treated or cure well (WHO 2018 ). From a simple example, it can be assumed how easily antibiotic-resistant strains can be transmitted from one person to another and ultimately travel across the boundaries (Berendonk et al. 2015 ). Talking about the second- and third-generation classes of antibiotics, e.g., most renowned generations of cephalosporin antibiotics that are more expensive, broad-spectrum, more toxic, and usually require more extended periods whenever prescribed to patients (Lemery et al. 2021 ; Pärnänen et al. 2019 ). This scenario has also revealed that the abundance of resistant strains of pathogens was also higher in the Southern part (WHO 2018 ). As southern parts are generally warmer than their counterparts, it is evident from this example how CC-induced global warming can augment the spread of antibiotic-resistant strains within the biosphere, eventually putting additional economic burden in the face of developing new and costlier antibiotics. The ARG exchange to susceptible bacteria through one of the potential mechanisms, transformation, transduction, and conjugation; Selection pressure can be caused by certain antibiotics, metals or pesticides, etc., as shown in Fig.  5 .

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A typical interaction between the susceptible and resistant strains.

Source: Elsayed et al. ( 2021 ); Karkman et al. ( 2018 )

Certain studies highlighted that conventional urban wastewater treatment plants are typical hotspots where most bacterial strains exchange genetic material through horizontal gene transfer (Fig.  5 ). Although at present, the extent of risks associated with the antibiotic resistance found in wastewater is complicated; environmental scientists and engineers have particular concerns about the potential impacts of these antibiotic resistance genes on human health (Ashbolt 2015 ). At most undesirable and worst case, these antibiotic-resistant genes containing bacteria can make their way to enter into the environment (Pruden et al. 2013 ), irrigation water used for crops and public water supplies and ultimately become a part of food chains and food webs (Ma et al. 2019 ; D. Wu et al. 2019 ). This problem has been reported manifold in several countries (Hendriksen et al. 2019 ), where wastewater as a means of irrigated water is quite common.

Climate change and vector borne-diseases

Temperature is a fundamental factor for the sustenance of living entities regardless of an ecosystem. So, a specific living being, especially a pathogen, requires a sophisticated temperature range to exist on earth. The second essential component of CC is precipitation, which also impacts numerous infectious agents’ transport and dissemination patterns. Global rising temperature is a significant cause of many species extinction. On the one hand, this changing environmental temperature may be causing species extinction, and on the other, this warming temperature might favor the thriving of some new organisms. Here, it was evident that some pathogens may also upraise once non-evident or reported (Patz et al. 2000 ). This concept can be exemplified through certain pathogenic strains of microorganisms that how the likelihood of various diseases increases in response to climate warming-induced environmental changes (Table ​ (Table2 2 ).

Examples of how various environmental changes affect various infectious diseases in humans

Environmental modificationsPotential diseasesThe causative organisms and pathway of effect
Construction of canals, dams, irrigation pathwaysSchistosomiasisSnail host locale, human contact
MalariaUpbringing places for mosquitoes
HelminthiasesLarval contact due to moist soil
River blindnessBlackfly upbringing
Agro-strengtheningMalariaCrop pesticides
Venezuelan hemorrhagic feverRodent abundance, contact
SuburbanizationCholeradeprived hygiene, asepsis; augmented water municipal assembling pollution
DengueWater-gathering rubbishes Aedes aegypti mosquito upbringing sites
Cutaneous leishmaniasisPSandfly vectors
Deforestation and new tenancyMalariaUpbringing sites and trajectories, migration of vulnerable people
Oropoucheupsurge contact, upbringing of directions
Visceral leishmaniasisRecurrent contact with sandfly vectors
AgricultureLyme diseaseTick hosts, outside revelation
Ocean heatingRed tidePoisonous algal blooms

Source: Aron and Patz ( 2001 )

A recent example is an outburst of coronavirus (COVID-19) in the Republic of China, causing pneumonia and severe acute respiratory complications (Cui et al. 2021 ; Song et al. 2021 ). The large family of viruses is harbored in numerous animals, bats, and snakes in particular (livescience.com) with the subsequent transfer into human beings. Hence, it is worth noting that the thriving of numerous vectors involved in spreading various diseases is influenced by Climate change (Ogden 2018 ; Santos et al. 2021 ).

Psychological impacts of climate change

Climate change (CC) is responsible for the rapid dissemination and exaggeration of certain epidemics and pandemics. In addition to the vast apparent impacts of climate change on health, forestry, agriculture, etc., it may also have psychological implications on vulnerable societies. It can be exemplified through the recent outburst of (COVID-19) in various countries around the world (Pal 2021 ). Besides, the victims of this viral infection have made healthy beings scarier and terrified. In the wake of such epidemics, people with common colds or fever are also frightened and must pass specific regulatory protocols. Living in such situations continuously terrifies the public and makes the stress familiar, which eventually makes them psychologically weak (npr.org).

CC boosts the extent of anxiety, distress, and other issues in public, pushing them to develop various mental-related problems. Besides, frequent exposure to extreme climatic catastrophes such as geological disasters also imprints post-traumatic disorder, and their ubiquitous occurrence paves the way to developing chronic psychological dysfunction. Moreover, repetitive listening from media also causes an increase in the person’s stress level (Association 2020 ). Similarly, communities living in flood-prone areas constantly live in extreme fear of drowning and die by floods. In addition to human lives, the flood-induced destruction of physical infrastructure is a specific reason for putting pressure on these communities (Ogden 2018 ). For instance, Ogden ( 2018 ) comprehensively denoted that Katrina’s Hurricane augmented the mental health issues in the victim communities.

Climate change impacts on the forestry sector

Forests are the global regulators of the world’s climate (FAO 2018 ) and have an indispensable role in regulating global carbon and nitrogen cycles (Rehman et al. 2021 ; Reichstein and Carvalhais 2019 ). Hence, disturbances in forest ecology affect the micro and macro-climates (Ellison et al. 2017 ). Climate warming, in return, has profound impacts on the growth and productivity of transboundary forests by influencing the temperature and precipitation patterns, etc. As CC induces specific changes in the typical structure and functions of ecosystems (Zhang et al. 2017 ) as well impacts forest health, climate change also has several devastating consequences such as forest fires, droughts, pest outbreaks (EPA 2018 ), and last but not the least is the livelihoods of forest-dependent communities. The rising frequency and intensity of another CC product, i.e., droughts, pose plenty of challenges to the well-being of global forests (Diffenbaugh et al. 2017 ), which is further projected to increase soon (Hartmann et al. 2018 ; Lehner et al. 2017 ; Rehman et al. 2021 ). Hence, CC induces storms, with more significant impacts also put extra pressure on the survival of the global forests (Martínez-Alvarado et al. 2018 ), significantly since their influences are augmented during higher winter precipitations with corresponding wetter soils causing weak root anchorage of trees (Brázdil et al. 2018 ). Surging temperature regimes causes alterations in usual precipitation patterns, which is a significant hurdle for the survival of temperate forests (Allen et al. 2010 ; Flannigan et al. 2013 ), letting them encounter severe stress and disturbances which adversely affects the local tree species (Hubbart et al. 2016 ; Millar and Stephenson 2015 ; Rehman et al. 2021 ).

Climate change impacts on forest-dependent communities

Forests are the fundamental livelihood resource for about 1.6 billion people worldwide; out of them, 350 million are distinguished with relatively higher reliance (Bank 2008 ). Agro-forestry-dependent communities comprise 1.2 billion, and 60 million indigenous people solely rely on forests and their products to sustain their lives (Sunderlin et al. 2005 ). For example, in the entire African continent, more than 2/3rd of inhabitants depend on forest resources and woodlands for their alimonies, e.g., food, fuelwood and grazing (Wasiq and Ahmad 2004 ). The livings of these people are more intensely affected by the climatic disruptions making their lives harder (Brown et al. 2014 ). On the one hand, forest communities are incredibly vulnerable to CC due to their livelihoods, cultural and spiritual ties as well as socio-ecological connections, and on the other, they are not familiar with the term “climate change.” (Rahman and Alam 2016 ). Among the destructive impacts of temperature and rainfall, disruption of the agroforestry crops with resultant downscale growth and yield (Macchi et al. 2008 ). Cruz ( 2015 ) ascribed that forest-dependent smallholder farmers in the Philippines face the enigma of delayed fruiting, more severe damages by insect and pest incidences due to unfavorable temperature regimes, and changed rainfall patterns.

Among these series of challenges to forest communities, their well-being is also distinctly vulnerable to CC. Though the detailed climate change impacts on human health have been comprehensively mentioned in the previous section, some studies have listed a few more devastating effects on the prosperity of forest-dependent communities. For instance, the Himalayan people have been experiencing frequent skin-borne diseases such as malaria and other skin diseases due to increasing mosquitoes, wild boar as well, and new wasps species, particularly in higher altitudes that were almost non-existent before last 5–10 years (Xu et al. 2008 ). Similarly, people living at high altitudes in Bangladesh have experienced frequent mosquito-borne calamities (Fardous; Sharma 2012 ). In addition, the pace of other waterborne diseases such as infectious diarrhea, cholera, pathogenic induced abdominal complications and dengue has also been boosted in other distinguished regions of Bangladesh (Cell 2009 ; Gunter et al. 2008 ).

Pest outbreak

Upscaling hotter climate may positively affect the mobile organisms with shorter generation times because they can scurry from harsh conditions than the immobile species (Fettig et al. 2013 ; Schoene and Bernier 2012 ) and are also relatively more capable of adapting to new environments (Jactel et al. 2019 ). It reveals that insects adapt quickly to global warming due to their mobility advantages. Due to past outbreaks, the trees (forests) are relatively more susceptible victims (Kurz et al. 2008 ). Before CC, the influence of factors mentioned earlier, i.e., droughts and storms, was existent and made the forests susceptible to insect pest interventions; however, the global forests remain steadfast, assiduous, and green (Jactel et al. 2019 ). The typical reasons could be the insect herbivores were regulated by several tree defenses and pressures of predation (Wilkinson and Sherratt 2016 ). As climate greatly influences these phenomena, the global forests cannot be so sedulous against such challenges (Jactel et al. 2019 ). Table ​ Table3 3 demonstrates some of the particular considerations with practical examples that are essential while mitigating the impacts of CC in the forestry sector.

Essential considerations while mitigating the climate change impacts on the forestry sector

AttributesDescriptionForestry example
PurposefulnessAutonomousIncludes continuing application of prevailing information and techniques in retort to experienced climate change

Thin to reduce drought stress; construct breaks in vegetation to

Stop feast of wildfires, vermin, and ailments

TimingPreemptiveNecessitates interactive change to diminish future injury, jeopardy, and weakness, often through planning, observing, growing consciousness, structure partnerships, and ornamental erudition or investigation

Ensure forest property against potential future losses; transition to

species or stand erections that are better reformed to predictable

future conditions; trial with new forestry organization

practices

ScopeIncremental

Involves making small changes in present circumstances to circumvent disturbances

and ongoing to chase the same purposes

Condense rotation pauses to decrease the likelihood of harm to storm Events, differentiate classes to blowout jeopardy; thin to lessening compactness and defenselessness of jungle stands to tension
GoalOppositionShield or defend from alteration; take procedures to reservation constancy and battle changeGenerate refugia for rare classes; defend woodlands from austere fire and wind uproar; alter forest construction to reduce harshness or extent of wind and ice impairment; establish breaks in vegetation to dampen the spread of vermin, ailments, and wildfire

Source : Fischer ( 2019 )

Climate change impacts on tourism

Tourism is a commercial activity that has roots in multi-dimensions and an efficient tool with adequate job generation potential, revenue creation, earning of spectacular foreign exchange, enhancement in cross-cultural promulgation and cooperation, a business tool for entrepreneurs and eventually for the country’s national development (Arshad et al. 2018 ; Scott 2021 ). Among a plethora of other disciplines, the tourism industry is also a distinct victim of climate warming (Gössling et al. 2012 ; Hall et al. 2015 ) as the climate is among the essential resources that enable tourism in particular regions as most preferred locations. Different places at different times of the year attract tourists both within and across the countries depending upon the feasibility and compatibility of particular weather patterns. Hence, the massive variations in these weather patterns resulting from CC will eventually lead to monumental challenges to the local economy in that specific area’s particular and national economy (Bujosa et al. 2015 ). For instance, the Intergovernmental Panel on Climate Change (IPCC) report demonstrated that the global tourism industry had faced a considerable decline in the duration of ski season, including the loss of some ski areas and the dramatic shifts in tourist destinations’ climate warming.

Furthermore, different studies (Neuvonen et al. 2015 ; Scott et al. 2004 ) indicated that various currently perfect tourist spots, e.g., coastal areas, splendid islands, and ski resorts, will suffer consequences of CC. It is also worth noting that the quality and potential of administrative management potential to cope with the influence of CC on the tourism industry is of crucial significance, which renders specific strengths of resiliency to numerous destinations to withstand against it (Füssel and Hildén 2014 ). Similarly, in the partial or complete absence of adequate socio-economic and socio-political capital, the high-demanding tourist sites scurry towards the verge of vulnerability. The susceptibility of tourism is based on different components such as the extent of exposure, sensitivity, life-supporting sectors, and capacity assessment factors (Füssel and Hildén 2014 ). It is obvious corporality that sectors such as health, food, ecosystems, human habitat, infrastructure, water availability, and the accessibility of a particular region are prone to CC. Henceforth, the sensitivity of these critical sectors to CC and, in return, the adaptive measures are a hallmark in determining the composite vulnerability of climate warming (Ionescu et al. 2009 ).

Moreover, the dependence on imported food items, poor hygienic conditions, and inadequate health professionals are dominant aspects affecting the local terrestrial and aquatic biodiversity. Meanwhile, the greater dependency on ecosystem services and its products also makes a destination more fragile to become a prey of CC (Rizvi et al. 2015 ). Some significant non-climatic factors are important indicators of a particular ecosystem’s typical health and functioning, e.g., resource richness and abundance portray the picture of ecosystem stability. Similarly, the species abundance is also a productive tool that ensures that the ecosystem has a higher buffering capacity, which is terrific in terms of resiliency (Roscher et al. 2013 ).

Climate change impacts on the economic sector

Climate plays a significant role in overall productivity and economic growth. Due to its increasingly global existence and its effect on economic growth, CC has become one of the major concerns of both local and international environmental policymakers (Ferreira et al. 2020 ; Gleditsch 2021 ; Abbass et al. 2021b ; Lamperti et al. 2021 ). The adverse effects of CC on the overall productivity factor of the agricultural sector are therefore significant for understanding the creation of local adaptation policies and the composition of productive climate policy contracts. Previous studies on CC in the world have already forecasted its effects on the agricultural sector. Researchers have found that global CC will impact the agricultural sector in different world regions. The study of the impacts of CC on various agrarian activities in other demographic areas and the development of relative strategies to respond to effects has become a focal point for researchers (Chandioet al. 2020 ; Gleditsch 2021 ; Mosavi et al. 2020 ).

With the rapid growth of global warming since the 1980s, the temperature has started increasing globally, which resulted in the incredible transformation of rain and evaporation in the countries. The agricultural development of many countries has been reliant, delicate, and susceptible to CC for a long time, and it is on the development of agriculture total factor productivity (ATFP) influence different crops and yields of farmers (Alhassan 2021 ; Wu  2020 ).

Food security and natural disasters are increasing rapidly in the world. Several major climatic/natural disasters have impacted local crop production in the countries concerned. The effects of these natural disasters have been poorly controlled by the development of the economies and populations and may affect human life as well. One example is China, which is among the world’s most affected countries, vulnerable to natural disasters due to its large population, harsh environmental conditions, rapid CC, low environmental stability, and disaster power. According to the January 2016 statistical survey, China experienced an economic loss of 298.3 billion Yuan, and about 137 million Chinese people were severely affected by various natural disasters (Xie et al. 2018 ).

Mitigation and adaptation strategies of climate changes

Adaptation and mitigation are the crucial factors to address the response to CC (Jahanzad et al. 2020 ). Researchers define mitigation on climate changes, and on the other hand, adaptation directly impacts climate changes like floods. To some extent, mitigation reduces or moderates greenhouse gas emission, and it becomes a critical issue both economically and environmentally (Botzen et al. 2021 ; Jahanzad et al. 2020 ; Kongsager 2018 ; Smit et al. 2000 ; Vale et al. 2021 ; Usman et al. 2021 ; Verheyen 2005 ).

Researchers have deep concern about the adaptation and mitigation methodologies in sectoral and geographical contexts. Agriculture, industry, forestry, transport, and land use are the main sectors to adapt and mitigate policies(Kärkkäinen et al. 2020 ; Waheed et al. 2021 ). Adaptation and mitigation require particular concern both at the national and international levels. The world has faced a significant problem of climate change in the last decades, and adaptation to these effects is compulsory for economic and social development. To adapt and mitigate against CC, one should develop policies and strategies at the international level (Hussain et al. 2020 ). Figure  6 depicts the list of current studies on sectoral impacts of CC with adaptation and mitigation measures globally.

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Sectoral impacts of climate change with adaptation and mitigation measures.

Conclusion and future perspectives

Specific socio-agricultural, socio-economic, and physical systems are the cornerstone of psychological well-being, and the alteration in these systems by CC will have disastrous impacts. Climate variability, alongside other anthropogenic and natural stressors, influences human and environmental health sustainability. Food security is another concerning scenario that may lead to compromised food quality, higher food prices, and inadequate food distribution systems. Global forests are challenged by different climatic factors such as storms, droughts, flash floods, and intense precipitation. On the other hand, their anthropogenic wiping is aggrandizing their existence. Undoubtedly, the vulnerability scale of the world’s regions differs; however, appropriate mitigation and adaptation measures can aid the decision-making bodies in developing effective policies to tackle its impacts. Presently, modern life on earth has tailored to consistent climatic patterns, and accordingly, adapting to such considerable variations is of paramount importance. Because the faster changes in climate will make it harder to survive and adjust, this globally-raising enigma calls for immediate attention at every scale ranging from elementary community level to international level. Still, much effort, research, and dedication are required, which is the most critical time. Some policy implications can help us to mitigate the consequences of climate change, especially the most affected sectors like the agriculture sector;

Warming might lengthen the season in frost-prone growing regions (temperate and arctic zones), allowing for longer-maturing seasonal cultivars with better yields (Pfadenhauer 2020 ; Bonacci 2019 ). Extending the planting season may allow additional crops each year; when warming leads to frequent warmer months highs over critical thresholds, a split season with a brief summer fallow may be conceivable for short-period crops such as wheat barley, cereals, and many other vegetable crops. The capacity to prolong the planting season in tropical and subtropical places where the harvest season is constrained by precipitation or agriculture farming occurs after the year may be more limited and dependent on how precipitation patterns vary (Wu et al. 2017 ).

The genetic component is comprehensive for many yields, but it is restricted like kiwi fruit for a few. Ali et al. ( 2017 ) investigated how new crops will react to climatic changes (also stated in Mall et al. 2017 ). Hot temperature, drought, insect resistance; salt tolerance; and overall crop production and product quality increases would all be advantageous (Akkari 2016 ). Genetic mapping and engineering can introduce a greater spectrum of features. The adoption of genetically altered cultivars has been slowed, particularly in the early forecasts owing to the complexity in ensuring features are expediently expressed throughout the entire plant, customer concerns, economic profitability, and regulatory impediments (Wirehn 2018 ; Davidson et al. 2016 ).

To get the full benefit of the CO 2 would certainly require additional nitrogen and other fertilizers. Nitrogen not consumed by the plants may be excreted into groundwater, discharged into water surface, or emitted from the land, soil nitrous oxide when large doses of fertilizer are sprayed. Increased nitrogen levels in groundwater sources have been related to human chronic illnesses and impact marine ecosystems. Cultivation, grain drying, and other field activities have all been examined in depth in the studies (Barua et al. 2018 ).

  • The technological and socio-economic adaptation

The policy consequence of the causative conclusion is that as a source of alternative energy, biofuel production is one of the routes that explain oil price volatility separate from international macroeconomic factors. Even though biofuel production has just begun in a few sample nations, there is still a tremendous worldwide need for feedstock to satisfy industrial expansion in China and the USA, which explains the food price relationship to the global oil price. Essentially, oil-exporting countries may create incentives in their economies to increase food production. It may accomplish by giving farmers financing, seedlings, fertilizers, and farming equipment. Because of the declining global oil price and, as a result, their earnings from oil export, oil-producing nations may be unable to subsidize food imports even in the near term. As a result, these countries can boost the agricultural value chain for export. It may be accomplished through R&D and adding value to their food products to increase income by correcting exchange rate misalignment and adverse trade terms. These nations may also diversify their economies away from oil, as dependence on oil exports alone is no longer economically viable given the extreme volatility of global oil prices. Finally, resource-rich and oil-exporting countries can convert to non-food renewable energy sources such as solar, hydro, coal, wind, wave, and tidal energy. By doing so, both world food and oil supplies would be maintained rather than harmed.

IRENA’s modeling work shows that, if a comprehensive policy framework is in place, efforts toward decarbonizing the energy future will benefit economic activity, jobs (outweighing losses in the fossil fuel industry), and welfare. Countries with weak domestic supply chains and a large reliance on fossil fuel income, in particular, must undertake structural reforms to capitalize on the opportunities inherent in the energy transition. Governments continue to give major policy assistance to extract fossil fuels, including tax incentives, financing, direct infrastructure expenditures, exemptions from environmental regulations, and other measures. The majority of major oil and gas producing countries intend to increase output. Some countries intend to cut coal output, while others plan to maintain or expand it. While some nations are beginning to explore and execute policies aimed at a just and equitable transition away from fossil fuel production, these efforts have yet to impact major producing countries’ plans and goals. Verifiable and comparable data on fossil fuel output and assistance from governments and industries are critical to closing the production gap. Governments could increase openness by declaring their production intentions in their climate obligations under the Paris Agreement.

It is firmly believed that achieving the Paris Agreement commitments is doubtlful without undergoing renewable energy transition across the globe (Murshed 2020 ; Zhao et al. 2022 ). Policy instruments play the most important role in determining the degree of investment in renewable energy technology. This study examines the efficacy of various policy strategies in the renewable energy industry of multiple nations. Although its impact is more visible in established renewable energy markets, a renewable portfolio standard is also a useful policy instrument. The cost of producing renewable energy is still greater than other traditional energy sources. Furthermore, government incentives in the R&D sector can foster innovation in this field, resulting in cost reductions in the renewable energy industry. These nations may export their technologies and share their policy experiences by forming networks among their renewable energy-focused organizations. All policy measures aim to reduce production costs while increasing the proportion of renewables to a country’s energy system. Meanwhile, long-term contracts with renewable energy providers, government commitment and control, and the establishment of long-term goals can assist developing nations in deploying renewable energy technology in their energy sector.

Author contribution

KA: Writing the original manuscript, data collection, data analysis, Study design, Formal analysis, Visualization, Revised draft, Writing-review, and editing. MZQ: Writing the original manuscript, data collection, data analysis, Writing-review, and editing. HS: Contribution to the contextualization of the theme, Conceptualization, Validation, Supervision, literature review, Revised drapt, and writing review and editing. MM: Writing review and editing, compiling the literature review, language editing. HM: Writing review and editing, compiling the literature review, language editing. IY: Contribution to the contextualization of the theme, literature review, and writing review and editing.

Availability of data and material

Declarations.

Not applicable.

The authors declare no competing interests.

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Contributor Information

Kashif Abbass, Email: nc.ude.tsujn@ssabbafihsak .

Muhammad Zeeshan Qasim, Email: moc.kooltuo@888misaqnahseez .

Huaming Song, Email: nc.ude.tsujn@gnimauh .

Muntasir Murshed, Email: [email protected] .

Haider Mahmood, Email: moc.liamtoh@doomhamrediah .

Ijaz Younis, Email: nc.ude.tsujn@sinuoyzaji .

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What Are the Solutions to Climate Change?

Some solutions are big and will require billions in investment. Some are small and free. All are achievable.

A woman holds a lantern that is connected by a wire to a small solar panel held by a man to her left.

Bundei Hidreka (left), a member of the Orissa Tribal Women's Barefoot Solar Engineers Association, holds up a solar lantern in Tinginaput, India.

Abbie Trayler-Smith/DFID, CC BY-NC-ND 4.0

A headshot of Jeff Turrentine

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Thinking about climate change can be overwhelming. We’ve been aware of its causes for decades now, and all around us, we bear witness to its devastating effects on our communities and ecosystems.

But the good news is that we now know exactly what it will take to win the fight against climate change, and we’re making measurable, meaningful progress. Game-changing developments in clean energy, electric vehicle technology, and energy efficiency are emerging every single day. And countries—including Canada , China , India , and the United States —are coordinating and cooperating at levels never seen before in order to tackle the most pressing issue of our time.

The bottom line: If the causes and effects of our climate crisis are clearer than ever, so are the solutions.

Ending our reliance on fossil fuels

Greater energy efficiency, renewable energy, sustainable transportation, sustainable buildings, better forestry management and sustainable agriculture, conservation-based solutions, industrial solutions, technological solutions, our choices.

The single-most important thing that we can do to combat climate change is to drastically reduce our consumption of fossil fuels . The burning of coal, oil, and natural gas in our buildings, industrial processes, and transportation is responsible for the vast majority of emissions that are warming the planet —more than 75 percent, according to the United Nations. In addition to altering the climate , dirty energy also comes with unacceptable ecological and human health impacts.

We must replace coal, oil, and gas with renewable and efficient energy sources. Thankfully, with each passing year, clean energy is making gains as technology improves and production costs go down. But according to the Intergovernmental Panel on Climate Change's Special Report on Global Warming of 1.5°C , in order to meet the goal of reducing global carbon emissions by at least 45 percent below 2010 levels before 2030—which scientists tell us we must do if we’re to avoid the worst, deadliest impacts of climate change—we must act faster.

There are promising signs. Wind and solar continue to account for ever-larger shares of electricity generation. In 2021, wind and solar generated a record 10 percent of electricity worldwide. And modeling by NRDC has found that wind, solar, hydro, and nuclear could account for as much as 80 percent of U.S. electricity by the end of this decade . (We can also fully realize our clean energy potential if we invest in repairing our aging grid infrastructure and installing new transmission lines.) While this transformation is taking place, automakers—as well as governments—are preparing for a future when the majority of vehicles on the road will produce zero emissions.

A man stands on a green lawn in front of a white house, spraying water from a hose onto a metal panel on the grass in front of him.

Technicians from Solaris Energy carry out the first-annual servicing and cleaning on a heat pump that was installed into a house originally built in the 1930s, in Folkestone, United Kingdom.

Andrew Aitchison / In pictures via Getty Images

Energy efficiency has been referred to as “the first fuel”; after all, the more energy efficient our systems are, the less actual fuel we have to consume, whether rooftop solar energy or gas power. Considered this way, efficiency is our largest energy resource. As the technology harnessing it has advanced over the past 40 years, efficiency has contributed more to the United States’s energy needs than oil, coal, gas, or nuclear power.

What’s more, energy efficiency strategies can be applied across multiple sectors: in our power plants, electrical grids, factories, vehicles, buildings, home appliances, and more. Some of these climate-friendly strategies can be enormously complex, such as helping utility companies adopt performance-based regulation systems , in which they no longer make more money simply by selling more energy but rather by improving the services they provide. Other strategies are extraordinarily simple. For example, weatherproofing buildings, installing cool roofs , replacing boilers and air conditioners with super-efficient heat pumps , and yes, switching out light bulbs from incandescent to LED can all make a big dent in our energy consumption.

Transitioning from fossil fuels to clean energy is the key to winning the fight against climate change. Here are the most common sources of renewable energy —and one source of decidedly nonrenewable energy that often gets included (falsely) in the list.

A worker in a hard hat stands in front of a building with rooftop solar panels.

Engineer Steve Marchi and his team perform a final review of rooftop solar panels as part of the solar expansion project at the Wayne National Forest Welcome Center, in Ohio.

Alex Snyder/Wayne National Forest

Solar energy

Solar energy is produced when light from the sun is absorbed by photovoltaic cells and turned directly into electricity. The solar panels that you may have seen on rooftops or at ground level are made up of many of these cells working together. By 2030, at least one in seven U.S. homes is projected to have rooftop solar panels, which emit no greenhouse gases or other pollutants, and which generate electricity year-round (in hot or cold weather) so long as the sun is shining. Solar energy currently accounts for just under 3 percent of the electricity generated in the United States—enough to power 18 million homes —but is growing at a faster rate than any other source. By 2035, it could account for as much as 40 percent of electricity generation. From 2020 through 2026, solar will account for more than half of new electricity generation worldwide.

What to do when the sun doesn’t shine, you might ask. Alongside the boom in solar has been a surge in companion battery storage: More than 93 percent of U.S. battery capacity added in 2021 was paired with solar power plants. Battery storage is key to the clean energy revolution—and adapting to a warming world. Not only are batteries important at night when the sun isn’t out, but on hot days when homes draw a lot of electricity to power air conditioners, battery storage can help manage the energy demand and control the threat of power failures.

Three wind turbines stand in rough seas with a wave cresting in front of them.

Turbines on Block Island Wind Farm, located 3.8 miles from Block Island, Rhode Island, in the Atlantic Ocean

Dennis Schroeder/NREL, 40481

Wind energy

Unlike solar panels, which convert the sun’s energy directly into electricity, wind turbines produce electricity more conventionally: wind turns the blades of a turbine, which spin a generator. Currently, wind accounts for just above 9 percent of U.S. electricity generation, but it, like solar, is growing fast as more states and utilities come to recognize its ability to produce 100 percent clean energy at a remarkably low cost. Unsurprisingly, states with plenty of wide-open space—including Kansas , Oklahoma , and Texas —have huge capacity when it comes to wind power, but many analysts believe that some of the greatest potential for wind energy exists just off our coasts. Offshore wind even tends to ramp up in the evenings when home electricity use jumps, and it can produce energy during the rainy and cloudy times when solar energy is less available. Smart planning and protective measures , meanwhile, can ensure we harness the massive promise of offshore wind while limiting or eliminating potential impacts on wildlife.

Steam rises off blue water in front of a power plant with four stacks

Svartsengi geothermal power plant in Iceland

Daniel Snaer Ragnarsson/iStock

Geothermal and hydroelectric energy

Along with sunlight and wind, water—under certain conditions—can also be a source of renewable energy. For instance, geothermal energy works by drilling deep underground and pumping extremely hot water up to the earth’s surface, where it is then converted to steam that, once pressurized, spins a generator to create electricity. Hydroelectric energy uses gravity to “pull” water downward through a pipe at high speeds and pressures; the force of this moving water is used to spin a generator’s rotor.

Humans have been harnessing heat energy from below the earth’s surface for eons—just think of the hot springs that provided warmth for the people of ancient Rome. Today’s geothermal plants are considered clean and renewable so long as the water and steam they bring up to the surface is redeposited underground after use. Proper siting of geothermal projects is also important, as recent science has linked some innovative approaches to geothermal to an increased risk of earthquakes.

Hydroelectric plants, when small-scale and carefully managed, represent a safe and renewable source of energy. Larger plants known as mega-dams, however, are highly problematic . Their massive footprint can disrupt the rivers on which people and wildlife depend .

Biomass energy

With very few exceptions, generating electricity through the burning of organic material like wood (sourced largely from pine and hardwood forests in the United States), agricultural products, or animal waste—collectively referred to as biomass —does little to reduce carbon emissions, and in fact, does far more environmental harm than good. Unfortunately, despite numerous studies that have revealed the true toll of this form of bioenergy , some countries continue to buy the biomass industry’s false narrative and subsidize these projects. Attitudes are changing but, given the recent wood pellet boom, there is a lot more work to be done.

A bus drives down a city street with high rise buildings in the background

A new electric bus on King Street in Honolulu, on June 16, 2021

Marco Garcia for NRDC

Transportation is a top source of greenhouse gases (GHG), so eliminating pollution from the billions of vehicles driving across the planet is essential to achieving net-zero global emissions by 2050, a goal laid out in the 2015 Paris climate agreement .

In 2021, electric vehicles (EVs) accounted for less than 8 percent of vehicle sales globally; by 2035 , however, it’s estimated that they’ll account for more than half of all new sales. Governments around the world aren’t just anticipating an all-electric future; they’re bringing it into fruition by setting goals and binding requirements to phase out the sale of gas-powered internal combustion engine (ICE) vehicles. That year, 2035, is expected to mark a turning point in the adoption of EVs and in the fight against climate change as countries around the world—as well as numerous automakers—have announced goals to phase out gas-powered cars and light trucks. This shift will also benefit our grid: EVs are like a “ battery on wheels ” and have the potential to supply electricity back to the network when demand peaks, helping to prevent blackouts.

It’s also critical that we consider all of the different ways we get around and build sustainability into each of them. By increasing access to public transportation—such as buses, ride-sharing services, subways, and streetcars—as well as embracing congestion pricing , we can cut down on car trips and keep millions of tons of carbon dioxide out of the atmosphere every year. And by encouraging zero-emission forms of transportation, such as walking and biking, we can reduce emissions even more. Boosting these alternate forms of transportation will require more than just talk. They require funding , planning, and the building out of supportive infrastructure by leaders across the local, state, and national levels.

To address the full set of impacts of the transportation sector, we need holistic and community-led solutions around things like land-use policies and the way we move consumer goods. Communities closest to ports , truck corridors, rail yards, and warehouses are exposed to toxic diesel emissions and face a high risk of developing acute and chronic public health diseases. Like all climate solutions, long-lasting change in the transportation sector requires building the power of historically marginalized communities.

A worker stands at a window in a room with plastic sheeting hanging from the ceiling and covering furniture

An Association for Energy Affordability (AEA) worker installs a new energy-efficient window at an apartment in the South Bronx, New York City.

Natalie Keyssar for NRDC

The energy used in our buildings—to keep the lights on and appliances running; to warm them and cool them; to cook and to heat water—makes them the single-largest source of carbon pollution in most cities across the United States. Making buildings more energy efficient, by upgrading windows and adding insulation to attics and walls, for example, will bring these numbers down. That’s why it’s all the more important that we raise public awareness of cost- and carbon-saving changes that individuals can make in their homes and workplaces, and make it easier for people to purchase and install energy-efficient technology, such as heat pumps (which can both heat and cool spaces) and certified appliances through programs like Energy Star in the United States or EnerGuide in Canada.

Beyond the measures that can be taken by individuals, we need to see a dedication from private businesses and governments to further building decarbonization , which simply means making buildings more efficient and replacing fossil fuel–burning systems and appliances with clean-powered ones. Policy tools can help get us there, including city and state mandates that all newly constructed homes, offices, and other buildings be outfitted with efficient all-electric systems for heating, cooling, and hot water; requirements that municipalities and states meet the latest and most stringent energy conservation standards when adopting or updating their building codes would also be impactful. Indeed, many places around the world are implementing building performance standards , which require existing buildings to reduce their energy use or carbon emissions over time. Most important, if these changes are going to reach the scale needed, we must invest in the affordable housing sector so that efficient and decarbonized homes are accessible to homeowners and renters of all incomes .

A young man stands on a rocky shore holding a rope attached to a red canoe on the water in front of him

Nicolas Mainville joins a canoe trip with youth from the Cree First Nation of Waswanipi on a river in Waswanipi Quebec, Canada, which is part of the boreal forest.

Nicolas Mainville/Greenpeace

Some of our strongest allies in the fight against climate change are the trees, plants, and soil that store massive amounts of carbon at ground level or underground. Without the aid of these carbon sinks , life on earth would be impossible, as atmospheric temperatures would rise to levels more like those found on Venus.

But whenever we clearcut forests for timber or rip out wetlands for development, we release that climate-warming carbon into the air. Similarly, the widespread overuse of nitrogen-based fertilizers (a fossil fuel product) on cropland and generations of industrial-scale livestock farming practices have led to the release of unprecedented amounts of nitrous oxide and methane, powerful greenhouse gases, into our atmosphere.

We can’t plant new trees fast enough to replace the ones we clearcut in carbon-storing forests like the Canadian boreal or the Amazon rainforest —nor can rows of spindly young pines serve the same function as old-growth trees. We need a combination of responsible forestry policies, international pressure, and changes in consumer behavior to put an end to deforestation practices that not only accelerate climate change but also destroy wildlife habitat and threaten the health and culture of Indigenous communities that live sustainably in these verdant spaces. At the same time, we need to treat our managed landscapes with as much care as we treat wild ones. For instance, adopting practices associated with organic and regenerative agriculture —cover crops, pesticide use reduction, rotational grazing, and compost instead of synthetic fertilizers—will help nurture the soil, yield healthier foods, and pay a climate dividend too.

Many small fish swim in clear waters near a large tree with roots extending below the water's surface

A school of fish swimming through a mangrove forest in the Caribbean Sea, off Belize

Intact ecosystems suck up and store vast amounts of carbon: Coastal ecosystems like wetlands and mangroves accumulate and store carbon in their roots; our forests soak up about a third of annual fossil fuel emissions; and freshwater wetlands hold between 20 and 30 percent of all the carbon found in the world’s soil. It’s clear we’re not going to be able to address climate change if we don’t preserve nature.

This is one reason why, along with preserving biodiversity, climate experts are calling on global leaders to fully protect and restore at least 30 percent of land, inland waters, and oceans by 2030 , a strategy endorsed by the Intergovernmental Panel on Climate Change. To help us reach that goal, we must limit industrial impacts on our public lands and waters, continue to protect natural landscapes, support the creation of marine protected areas, uphold bedrock environmental laws, and follow the lead of Indigenous Peoples, many of whom have been faithfully and sustainably stewarding lands and waters for millennia .

Gray and black smoke rise out of stacks on an industrial facility, with homes visible in the background.

Emissions rise from the Edgar Thomson Steel Works, a steel mill in the Braddock and North Braddock communities near Pittsburgh, Pennsylvania.

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Heavy industry—the factories and facilities that produce our goods—is responsible for a quarter of GHG emissions in the United States and 40 percent globally, according to the EPA. Most industrial emissions come from making a small set of carbon-intensive products: basic chemicals, iron and steel, cement, aluminum, glass, and paper. (Industrial plants are also often major sources of air and water pollutants that directly affect human health.)

Complicating matters is the fact that many industrial plants will stay in operation for decades, so emissions goals for 2050 are really just one investment cycle away. Given these long horizons for building and retrofitting industrial sites, starting investments and plans now is critical. What would successfully decarbonized industrial processes look like? They should sharply reduce heavy industry’s climate emissions , as well as local pollution. They should be scalable and widely available in the next decade, especially so that less developed nations can adopt these cleaner processes and grow without increasing emissions. And they should bolster manufacturing in a way that creates good jobs.

Technology alone won’t save us from climate change (especially not some of these risky geoengineering proposals ). But at the same time, we won’t be able to solve the climate crisis without researching and developing things like longer-lasting EV batteries , nonpolluting hydrogen-based solutions , and reliable, safe, and equitable methods for capturing and sequestering carbon . Because, while these tools hold promise, we have to make sure we don’t repeat the mistakes of the past. For instance, we can take actions to reduce local harms from mining lithium (a critical component of electric vehicle batteries), improve recycling opportunities for solar cells, and not use carbon capture as an excuse to pollute. To accelerate research and development, funding is the critical third leg of the stool: Governments must make investing in clean energy technologies a priority and spur innovation through grants, subsidies, tax incentives, and other rewards.

A group of protesters hold signs in front of a large banner reading "Charmin: Stop Flushing Our Forests"

A protester rings a bell in front of P&G’s headquarters in Cincinnati; the company’s toilet paper brand, Charmin, uses wood pulp from virgin trees in Canada's boreal forest.

Finally, it should go without saying that we, as individuals, are key to solving the climate crisis—not just by continuing to lobby our legislators and speak up in our communities but also by taking climate actions in our daily lives . By switching off fossil fuels in our homes and being more mindful of the climate footprint of the food we eat, our shopping habits, how we get around, our use of plastics and fossil fuels, and what businesses we choose to support (or not to support), we can move the needle.

But it’s when we act collectively that real change happens—and we can do even more than cut down on carbon pollution. Communities banding together have fought back fracking , pipelines , and oil drilling in people’s backyards . These local wins aren’t just good news for our global climate but they also protect the right to clean air and clean water for everyone. After all, climate change may be a global crisis but climate action starts in your own hometown .

We have a responsibility to consider the implications of our choices—and to make sure that these choices are actually helping to reduce the burdens of climate change, not merely shifting them somewhere else. It’s important to remember that the impacts of climate change —which intersect with and intensify so many other environmental, economic, and social issues—fall disproportionately on certain communities, namely low-income communities and communities of color. That’s why our leaders have a responsibility to prioritize the needs of these communities when crafting climate policies. If those on the frontlines aren’t a part of conversations around climate solutions, or do not feel the benefits of things like cleaner air and better job opportunities, then we are not addressing the roots of the climate crisis.

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Lesson of the Day

Explore 7 Climate Change Solutions

In this lesson, students will use a jigsaw activity to learn about some of the most effective strategies and technologies that can help head off the worst effects of global warming.

climate change problems and solutions essay pdf

By Natalie Proulx

Lesson Overview

Earlier this summer, a report issued by the Intergovernmental Panel on Climate Change , a body of scientists convened by the United Nations, found that some devastating impacts of global warming were unavoidable. But there is still a short window to stop things from getting even worse.

This report will be central at COP26 , the international climate summit where about 20,000 heads of state, diplomats and activists are meeting in person this week to set new targets for cutting emissions from coal, oil and gas that are heating the planet.

In this lesson, you will learn about seven ways we can slow down climate change and head off some of its most catastrophic consequences while we still have time. Using a jigsaw activity , you’ll become an expert in one of these strategies or technologies and share what you learn with your classmates. Then, you will develop your own climate plan and consider ways you can make a difference based on your new knowledge.

What do you know about the ways the world can slow climate change? Start by making a list of strategies, technologies or policies that could help solve the climate crisis.

Which of your ideas do you think could have the biggest impact on climate change? Circle what you think might be the top three.

Now, test your knowledge by taking this 2017 interactive quiz:

climate change problems and solutions essay pdf

How Much Do You Know About Solving Global Warming?

A new book presents 100 potential solutions. Can you figure out which ones are top ranked?

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How does global warming work?

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Grinnell Glacier shrinkage

Human activity affects global surface temperatures by changing Earth ’s radiative balance—the “give and take” between what comes in during the day and what Earth emits at night. Increases in greenhouse gases —i.e., trace gases such as carbon dioxide and methane that absorb heat energy emitted from Earth’s surface and reradiate it back—generated by industry and transportation cause the atmosphere to retain more heat, which increases temperatures and alters precipitation patterns.

Global warming, the phenomenon of increasing average air temperatures near Earth’s surface over the past one to two centuries, happens mostly in the troposphere , the lowest level of the atmosphere, which extends from Earth’s surface up to a height of 6–11 miles. This layer contains most of Earth’s clouds and is where living things and their habitats and weather primarily occur.

Continued global warming is expected to impact everything from energy use to water availability to crop productivity throughout the world. Poor countries and communities with limited abilities to adapt to these changes are expected to suffer disproportionately. Global warming is already being associated with increases in the incidence of severe and extreme weather, heavy flooding , and wildfires —phenomena that threaten homes, dams, transportation networks, and other facets of human infrastructure. Learn more about how the IPCC’s Sixth Assessment Report, released in 2021, describes the social impacts of global warming.

Polar bears live in the Arctic , where they use the region’s ice floes as they hunt seals and other marine mammals . Temperature increases related to global warming have been the most pronounced at the poles, where they often make the difference between frozen and melted ice. Polar bears rely on small gaps in the ice to hunt their prey. As these gaps widen because of continued melting, prey capture has become more challenging for these animals.

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global warming , the phenomenon of increasing average air temperatures near the surface of Earth over the past one to two centuries. Climate scientists have since the mid-20th century gathered detailed observations of various weather phenomena (such as temperatures, precipitation , and storms) and of related influences on climate (such as ocean currents and the atmosphere’s chemical composition). These data indicate that Earth’s climate has changed over almost every conceivable timescale since the beginning of geologic time and that human activities since at least the beginning of the Industrial Revolution have a growing influence over the pace and extent of present-day climate change .

Giving voice to a growing conviction of most of the scientific community , the Intergovernmental Panel on Climate Change (IPCC) was formed in 1988 by the World Meteorological Organization (WMO) and the United Nations Environment Program (UNEP). The IPCC’s Sixth Assessment Report (AR6), published in 2021, noted that the best estimate of the increase in global average surface temperature between 1850 and 2019 was 1.07 °C (1.9 °F). An IPCC special report produced in 2018 noted that human beings and their activities have been responsible for a worldwide average temperature increase between 0.8 and 1.2 °C (1.4 and 2.2 °F) since preindustrial times, and most of the warming over the second half of the 20th century could be attributed to human activities.

AR6 produced a series of global climate predictions based on modeling five greenhouse gas emission scenarios that accounted for future emissions, mitigation (severity reduction) measures, and uncertainties in the model projections. Some of the main uncertainties include the precise role of feedback processes and the impacts of industrial pollutants known as aerosols , which may offset some warming. The lowest-emissions scenario, which assumed steep cuts in greenhouse gas emissions beginning in 2015, predicted that the global mean surface temperature would increase between 1.0 and 1.8 °C (1.8 and 3.2 °F) by 2100 relative to the 1850–1900 average. This range stood in stark contrast to the highest-emissions scenario, which predicted that the mean surface temperature would rise between 3.3 and 5.7 °C (5.9 and 10.2 °F) by 2100 based on the assumption that greenhouse gas emissions would continue to increase throughout the 21st century. The intermediate-emissions scenario, which assumed that emissions would stabilize by 2050 before declining gradually, projected an increase of between 2.1 and 3.5 °C (3.8 and 6.3 °F) by 2100.

Many climate scientists agree that significant societal, economic, and ecological damage would result if the global average temperature rose by more than 2 °C (3.6 °F) in such a short time. Such damage would include increased extinction of many plant and animal species, shifts in patterns of agriculture , and rising sea levels. By 2015 all but a few national governments had begun the process of instituting carbon reduction plans as part of the Paris Agreement , a treaty designed to help countries keep global warming to 1.5 °C (2.7 °F) above preindustrial levels in order to avoid the worst of the predicted effects. Whereas authors of the 2018 special report noted that should carbon emissions continue at their present rate, the increase in average near-surface air temperature would reach 1.5 °C sometime between 2030 and 2052, authors of the AR6 report suggested that this threshold would be reached by 2041 at the latest.

Combination shot of Grinnell Glacier taken from the summit of Mount Gould, Glacier National Park, Montana in the years 1938, 1981, 1998 and 2006.

The AR6 report also noted that the global average sea level had risen by some 20 cm (7.9 inches) between 1901 and 2018 and that sea level rose faster in the second half of the 20th century than in the first half. It also predicted, again depending on a wide range of scenarios, that the global average sea level would rise by different amounts by 2100 relative to the 1995–2014 average. Under the report’s lowest-emission scenario, sea level would rise by 28–55 cm (11–21.7 inches), whereas, under the intermediate emissions scenario, sea level would rise by 44–76 cm (17.3–29.9 inches). The highest-emissions scenario suggested that sea level would rise by 63–101 cm (24.8–39.8 inches) by 2100.

climate change problems and solutions essay pdf

The scenarios referred to above depend mainly on future concentrations of certain trace gases, called greenhouse gases , that have been injected into the lower atmosphere in increasing amounts through the burning of fossil fuels for industry, transportation , and residential uses. Modern global warming is the result of an increase in magnitude of the so-called greenhouse effect , a warming of Earth’s surface and lower atmosphere caused by the presence of water vapour , carbon dioxide , methane , nitrous oxides , and other greenhouse gases. In 2014 the IPCC first reported that concentrations of carbon dioxide, methane, and nitrous oxides in the atmosphere surpassed those found in ice cores dating back 800,000 years.

climate change problems and solutions essay pdf

Of all these gases, carbon dioxide is the most important, both for its role in the greenhouse effect and for its role in the human economy. It has been estimated that, at the beginning of the industrial age in the mid-18th century, carbon dioxide concentrations in the atmosphere were roughly 280 parts per million (ppm). By the end of 2022 they had risen to 419 ppm, and, if fossil fuels continue to be burned at current rates, they are projected to reach 550 ppm by the mid-21st century—essentially, a doubling of carbon dioxide concentrations in 300 years.

What's the problem with an early spring?

A vigorous debate is in progress over the extent and seriousness of rising surface temperatures, the effects of past and future warming on human life, and the need for action to reduce future warming and deal with its consequences. This article provides an overview of the scientific background related to the subject of global warming. It considers the causes of rising near-surface air temperatures, the influencing factors, the process of climate research and forecasting, and the possible ecological and social impacts of rising temperatures. For an overview of the public policy developments related to global warming occurring since the mid-20th century, see global warming policy . For a detailed description of Earth’s climate, its processes, and the responses of living things to its changing nature, see climate . For additional background on how Earth’s climate has changed throughout geologic time , see climatic variation and change . For a full description of Earth’s gaseous envelope, within which climate change and global warming occur, see atmosphere .

Essay: To fix climate anxiety (and also climate change), we first have to fix individualism

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How do you cope? I feel the sorrow, the quiet plea for guidance every time someone asks me this question. As an environmental reporter dedicated to helping people make sense of climate change, I know I should have answers. But the truth is, it took me until now to face my own grief.

My heart keeps breaking whenever I meet yet another child struggling with asthma amid orange, smoke-filled skies. I, too, am reeling from the whiplash of extreme drought and extreme rain , and I’m still haunted by the thought of a mother having to call each of her daughters to say goodbye as the homes around her cave to fire.

Each year, as I reflect on my own reporting on the floods that keep getting worse and the toxic pollution building up in all forms of life , I find myself questioning whether I could ever justify bringing my own children into this world. I agonize over the amount of plastic we can’t avoid using and mourn the monarch butterflies that have vanished. With each new heat record shattered, and each new report declaring a code red for humanity , I can’t help but feel like we’re just counting down the days to our own extinction.

In the face of sea level rise, can we reimagine California’s vanishing coastline?

“Climate anxiety” is the term we now use to describe these feelings, but I must confess, I was perplexed when I first heard these words a few years ago. Anger, frustration, helplessness, exhaustion — these are the emotions I come across more often when getting to know the communities bracing for, or recovering from, the devastation of what they’ve long considered home.

Then a college student asked me about climate anxiety. It came up again on social media, and again in personal essays and polls. This paralyzing dread was suddenly the talk of the town — but it has also, very noticeably, remained absent in some circles.

All this has led me to wonder: What, exactly, is climate anxiety? And how should we cope? At first blush, this anxiety seems rooted in a fear that we’ll never go back to normal, that the future we were once promised is now gone. But who this “normal” is even for (and what we’re actually afraid of losing) speaks to a much more complicated question:

Is this anxiety pointing to a deeper responsibility that we all must face — and ultimately, is this anxiety something we can transcend?

climate change problems and solutions essay pdf

For Jade Sasser, whose research on climate emotions has been grounded by her own experiences as a Black woman, these questions sharpened into focus during a research-methods seminar that she was teaching early last year at UC Riverside.

The class — all female, many from low-income immigrant communities — had been a fairly quiet group all quarter, so Sasser was surprised when the room completely erupted after she broached what she thought would be an academic, somewhat dispassionate discussion about climate change and the future.

Every student was suddenly talking, even yelling, over one another. Thought after thought tumbled out as they shared that not only does the future feel bleak when it comes to the job market, the housing crisis and whether their generation will ever be able to “settle down with kids” — but all this is many times worse when you’re not white, not documented and not born into a college-educated family.

How can they feel hopeful about the future, they asked, when, on top of everything already stacked against them, they also have to worry about wildfires, extreme heat and air pollution getting out of control?

‘It’s almost shameful to want to have children’

‘Climate Anxiety and the Kid Question’ asks: With American society feeling more socially and politically polarized than ever, is it right to bring another person into the world?

“It was literally a collective meltdown unlike anything I had ever experienced,” said Sasser, whose podcast and book, “ Climate Anxiety and the Kid Question, ” were largely inspired by her students that day. “I understood in that moment that you cannot assume someone does not also experience anxiety simply because their way of talking about it may not be the same as yours.”

It doesn’t help, she added, that many people don’t realize what they’re feeling is climate anxiety because the way we talk about it tends to center the experiences of white and more privileged people — people who have been insulated from oppression and have rarely (until now) had to worry about the safety of their own future.

“For a lot of people, climate anxiety looks a certain way: It looks very scared, it looks very sad, and it looks like a person who is ready, willing and able to talk about it,” Sasser said. “But for those who are experiencing many compounding forms of vulnerability at the same time, you can’t just pick out one part of it and say, ‘Oh, this is what’s causing me to feel this way.’”

A brave first step is to acknowledge privilege — and to support, and perhaps even learn, from those who have had to be resilient long before climate change became so overwhelming.

“For me, this work is a matter of survival,” said Kevin J. Patel, who grew up in South L.A. and has been fighting for climate justice since he was 11. He was contemplative, nodding, when I shared what I learned from Sasser, and he gently added that one privilege many communities don’t have is the ability to turn it off. Not everyone can go on a vacation or take a day to recharge, he said. Even having the time to talk about your sadness can be a luxury.

Feeling climate anxiety? These books offer glimmers of hope — and much-needed wisdom

Patel learned at a young age that not all communities get the same level of care. Growing up with hazy air, in a neighborhood hemmed in by the 10 and 110 freeways, Patel almost collapsed one day in front of his sixth-grade class when his heart suddenly started pounding at more than 300 beats per minute.

His parents, farmers from Gujarat, India, rushed Patel to the emergency room and held his hand while everyone around him thought he was dying. After months of hospital visits and procedures, doctors determined that he had developed a severe heart condition in large part due to the smog.

open quotation mark

‘For me, this work is a matter of survival.’

— Kevin J. Patel

As he learned to live with an irregular heartbeat, he found joy in his family’s tiny garden and marveled at all the ladybugs that gathered on the tulsi, a special type of basil. He taught his classmates that food came from the ground, not the grocery store, and together, they went on to form an environmental club.

Today, Patel speaks with the hardened wisdom of someone who has experienced much more than the typical 23-year-old. He’s constantly doing something — whether it’s supporting a neighbor, getting water bottle refill stations installed at his school, or turning the idea of a Los Angeles County Youth Climate Commission into reality. For years, he has guided other marginalized youth through OneUpAction , a grassroots environmental group that he built from the ground up.

Even if he doesn’t call it anxiety, he admits he sometimes has trouble focusing, and there’s a tenseness in his body that can be hard to shake off. But he’s usually able to turn it around by talking to his friends or elders, or by reciting his favorite proverb:

They tried to bury us, but they didn’t know we were seeds.

“It’s not about what I need, it’s about what my community needs,” he said. “There is joy in caring for one another. There is joy in coming together to fight for a future that we believe in.”

When talking about climate anxiety, it’s important to differentiate whether you’re assessing these emotions as a mental health condition, or as a cultural phenomenon.

Let’s start with mental health: Polls show climate anxiety is on the rise and that people all around the world are losing sleep over climate change. Organizations like the Climate-Aware Therapist Directory and the American Psychiatric Assn. have put together an increasing number of guides and resources to help more people understand how climate change has affected our emotional well-being.

Poll shows Californians’ climate anxiety is on the rise

Just knowing that climate change is getting worse can trigger serious psychological responses. And the shock and trauma are all the more great if you’ve already had to live through the kinds of disasters that keep the rest of us up at night.

It’s also important to note that social media has magnified our sense of doom. What you see on social media tends to be a particularly intense and cherry-picked version of reality, but studies show that’s exactly how the vast majority of young people are getting their information about climate change: online rather than in school.

But you can’t treat climate anxiety like other forms of anxiety, and here’s where the cultural politics come in: The only way to make climate anxiety go away is to make climate change go away, and given the fraught and deeply systemic underpinnings of climate change, we must also consider this context when it comes to our climate emotions. How we feel is just as much a product of the narratives that have shaped the way we perceive and respond to the world.

“Climate anxiety can’t be limited to just a clinical setting — we have to take it out of the therapy room and look at it through a lens of privilege, and power, and the economic, historical and social structures that are at the root of the problem,” said Sarah Jaquette Ray, whose book “ A Field Guide to Climate Anxiety ” is a call to arms to think more expansively about our despair. “Treating a person’s climate anxiety without challenging these systems only addresses the symptoms, not the causes... and if white or more privileged emotions get the most airtime, and if we don’t see how climate is intersecting with all these other problems, that can result in a greater silencing of the people most impacted.”

Graphite drawing of an open palm holding a leaf. The veins of the leaf are layered with the veins of the hand.

Ray, an environmental humanist who chairs the environmental studies program at Cal Poly Humboldt, also emphasized that our distress can actually be a catalyst for much-needed change. These emotions are meant to shake us out of complacency, to sound the alarm to the very real crisis before us. But if we don’t openly talk about climate anxiety as something that is not only normal but also expected, we run the risk of further individualizing the problem. We already have a tendency to shut down and feel alone in our sorrows, which traps us into thinking only about ourselves.

“One huge reason why climate anxiety feels so awful is this feeling of not being able to do anything about it,” Ray said. “But if you actually saw yourself as part of a collective, as interconnected with all these other movements doing meaningful things, you wouldn’t be feeling this despair and loneliness.”

The trick to fixing climate anxiety is to fix individualism, she said. Start small, tap into what you’re already good at, join something bigger than yourself.

And by fixing individualism, as many young activists like Patel have already figured out, we just might have a better shot at fixing climate change.

Let us consider, for a moment, how the words that we use can also limit the way we think about our vulnerability and despair.

Something as simple as the “climate” in “climate anxiety” and how we define “environment” can unintentionally reinforce who we center in the conversation.

“In Nigeria, what we call our environment — it’s not just trees and mountains — it’s also about our food, our jobs, the biodiversity that gives us the life support that we need to thrive every day. That’s what we call our environment; it’s about our people,” said Jennifer Uchendu, who founded SustyVibes , a youth-led sustainability group based in her home country, as well as the Eco-Anxiety in Africa Project , which seeks to validate the emotions and experiences of communities often overlooked in climate conversations. “So if people are being oppressed by the system, it is still linked to our idea of the environment.”

Many of Uchendu’s elders have expressed a lifetime of feeling frustrated and powerless, for example, but she said they didn’t immediately connect these feelings to climate change because “climate anxiety” sounded to them like a new and elite phenomenon.

Editorial: California can make climate polluters pay for the mess they have made of Earth

We hear so often today that climate change is the existential crisis of our time, but that dismisses the trauma and violence to all the people who have been fighting to survive for centuries. Colonization, greed and exploitation are inseparable from climate change, Uchendu said, but we miss these connections when we consider our emotions only through a Western lens.

For Jessa Calderon, a Chumash and Tongva songwriter, these disconnects are ever-present in the concrete-hardened rivers snaking through Los Angeles, and the sour taste of industrialization often singeing the air. In her darkest moments, her heart hurts wondering if her son, Honor, will grow up to know clean water.

Her voice cracked as she recalled a brown bear that had been struck dead on the freeway near the Cajon Pass. As she watched strangers gawk at the limp body and share videos online, she wished she had been able to put the bear to rest and sing him into the spirit world.

“If we don’t see them as our people, then we have no hope for ourselves as a people, because we’re showing that we care about nothing more than ourselves,” she said. “And if we care about nothing more than ourselves, then we’re going to continue to devastate each other and the land.”

It is not too late to turn your climate anxiety into climate empathy. Acknowledging the emotional toll on people beyond yourself can be an opportunity to listen and support one another. Embracing our feelings — and then finding others who also want to turn their fear into action — can be the missing spark to much-needed social and environmental healing.

There is also wisdom to be learned in the songs and traditions of past movements, when people banded together — for civil rights, for women’s suffrage — and found ways to keep hope alive against all odds. And the more we look to the young people still caring for their elders in Nigeria, and to our Indigenous neighbors who continue to sing and love and tend to every living being, the better we might also comprehend the resilience required of all of us in the warming years ahead.

Opinion: Here are the places that could become too hot for humans due to climate change

So how should we cope? For Patel, living with his irregular but unwavering heartbeat, he finds strength in the words of adrienne maree brown, who famously wrote in “ Emergent Strategy ” that in the same way our lives are shaped today by our ancestors, we ourselves are future ancestors. Calderon, who similarly taught her son to leave this Earth better with every passing generation, confided to me that on the days when the sorrow feels too great, she sneaks off to plant native manzanita seeds in neighborhoods stripped of plants and trees.

As I’m reminded of all the love we can still sow for the future, I think of Phoenix Armenta, a longtime climate justice organizer in Oakland who has inspired numerous people, including myself, to take heart in all the times we actually got it right. (Remember acid rain? It was a huge problem, but collective action inspired multiple countries to join forces in the 1980s, and we did what needed to be done.)

“Imagine what kind of world you actually want to live in and start working to make that happen,” said Armenta, who recently made the switch to government planning to help more communities find their voice and determine their own visions for the future.

To grieve the world as we know it is to miss out on opportunities to transform our world for the better. To believe we have nothing left to hope for is a self-fulfilling void. We must find the courage to care, to change, to reimagine the systems that got us into such a devastating crisis in the first place — and we must allow ourselves to dream.

“But it can’t just be my dream, or your dream. It has to be our collective dream,” Armenta said. “I’ve known for a very long time that I can’t save the world, but we can save the world together.”

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California extreme weather shift: From record heat to cold, rain, even snow

Sept. 16, 2024

Climate Change – Problems and Solutions Essay

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Natural Causes of climate change

Man-made causes of climate change, the potential impact of global warming, the current impact of global warming, possible solutions to global warming, current implication of global warming solutions.

Global warming is an increasing concern in the world caused by the excessive release of greenhouse gases. It is causing a devastating impact on the environment and affecting the quality of life. Natural causes are difficult to control since they are sometimes beyond human capabilities. However, effort should be made to manage certain situations such as forest fires by responding effectively to put them off. Moreover, human activities can influence natural disasters particularly when they interfere with natural processes. Flooding may occur because of activities such as agricultural activities, urban development, deforestation, hydroelectric power, and the destruction of wetlands. Inappropriate mining can create permanent landscape modifications such as drying up of oceans while building dams can trigger earthquakes.

Humans have played a great role in climate change particularly global warming because of engaging in activities that affect the environment. Failure to prioritize environmental issues and not being concerned about the impact of human activities on the environment has continued degrading natural resources. Effective regulations should be established to hinder activities that cause the generation of carbon dioxide and other greenhouse gases. The time has come when every nation should start prioritizing environmental issues more than other factors such as economic and social.

Global warming is likely to cause a severer impact if sufficient measures are not taken to address the problem. The potential impact could affect the quality of life in a great way and cause more suffering to humans. Increasing deserts would affect the availability of food and water resulting in the development of new diseases and hunger. The potential impact could be the reduction of human and animal population, as the world becomes a harsh environment. Drying up sources of water and flooding the other areas would kill many animals and interfere with important activities such as mating.

Global warming is causing devastating effects, and worsening many disasters such as droughts, storms, and heatwaves. The warmer climate tends to retain, collect and then drop more water influencing the weather patterns to change where dry areas become drier and wet areas wetter (Price et al., 2020). The problem increases stress on the ecosystem following water shortages, pest and weed invasions, and salt invasions.

The rising cases of drought following the shortage of rainfall are threatening the lives of many people living in those regions. Extended dry seasons affect the availability of food to both humans and animals. On the other hand, rising sea levels along the coast have displaced people forcing them to move to higher regions. This is increasing pressure for resources as people move to settle in other areas. Moreover, some parts of the world such as the Midwest are experiencing extreme hot events and temperatures are likely to worsen unless sufficient measures are taken to address the problem. Extreme temperature increases health risks and influences the development of new ailments that were not common in the past.

The Current Impact of Global Warming

Everybody has a role to place in the elimination of the global warming problem in the world. It is important to avoid cutting trees and reduce the utilization of energy to protect the environment. Small energy-saving practices such as unplugging gadgets, switching off lights, and using public transport can have a great impact on the reduction of global warming.

The current solutions focusing on the reduction of global warming have brought many beneficial changes and remedies. Many organizations have been developed to enhance innovation and technology in the innovation of eco-friendly machines. For instance, there has been increased investment in solar and wind energy in an attempt to reduce the use of fossil fuels. Many states have launched campaigns to educate the public on the importance of environmental conservation to create a favorable environment for future generations. People have started changing their behaviors and actions to reduce their carbon footprint.

Kweku, D., Bismark, O., Maxwell, A., Desmond, K., Danso, K., Oti-Mensah, E., Quachie, A., & Adormaa, B. (2018). Greenhouse effect: Greenhouse gases and their impact on global warming. Journal of Scientific Research and Reports, 17(6), 1-9. Web.

Price, M., Rowntree, L., Lewis, M., Wyckoff, W. (2020). Globalization and diversity (6th ed.). Pearson.

  • Environmental Pollution and Its Effect on Health
  • The Paris (COP 21) Agreement and Oil Mining in Chad
  • Flooding and Mitigation Measures
  • Global Warming and Man-Made Carbon Dioxide Factor
  • The Problem of Natural Disasters
  • Global Warming Challenges and Potential Solutions
  • Effects of Global Warming on Marine Life
  • “What to Make of a Warming Plateau”
  • Impact of Global Climate Change on Malaria
  • “Storms of My Grandchildren” by James Hansen
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Climate Change: Evidence, Impacts, and Choices: PDF Booklet

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Climate Change: Evidence, Impacts, and Choices

Pdf booklet.

What is climate? Climate is commonly thought of as the expected weather conditions at a given location over time. People know when they go to New York City in winter, they should take a heavy coat. When they visit the Pacific Northwest, they should take an umbrella. Climate can be measured as many geographic scales - for example, cities, countries, or the entire globe - by such statistics as average temperatures, average number of rainy days, and the frequency of droughts. Climate change refers to changes in these statistics over years, decades, or even centuries.

Enormous progress has been made in increasing our understanding of climate change and its causes, and a clearer picture of current and future impacts is emerging. Research is also shedding light on actions that might be taken to limit the magnitude of climate change and adapt to its impacts.

Climate Change: Evidence, Impacts, and Choices is intended to help people understand what is known about climate change. First, it lays out the evidence that human activities, especially the burning of fossil fuels, are responsible for much of the warming and related changes being observed around the world. Second, it summarizes projections of future climate changes and impacts expected in this century and beyond. Finally, the booklet examines how science can help inform choice about managing and reducing the risks posed by climate change. The information is based on a number of National Research Council reports, each of which represents the consensus of experts who have reviewed hundreds of studies describing many years of accumulating evidence.

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Suggested Citation

National Research Council. 2012. Climate Change: Evidence, Impacts, and Choices: PDF Booklet . Washington, DC: The National Academies Press. https://doi.org/10.17226/14673. Import this citation to: Bibtex EndNote Reference Manager

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COMMENTS

  1. Climate Change: Causes, Effects, and Solutions

    change happens widely because we are burning fossil fuels and that increases gases such as. CO2, methane, and some other gases in the atmosphere" (phone interview). According to the. Australian Greenhouse Office, the world depends on fossil fuels such as oil, coal, and natural. gas for 80% of its energy needs.

  2. Climate change and ecosystems: threats, opportunities and solutions

    The potential to protect, restore and use ecosystems as tools to tackle climate change has gained increasing traction under the broad/overarching framework of NbS, or 'natural climate solutions' (NCS) where the context is mitigation of climate change . NbS can make a partial contribution to slowing and limiting global warming, while also ...

  3. PDF Climate Change: Evidence & Causes 2020

    The atmosphere and oceans have warmed, which has been accompanied by sea level rise, a strong decline in Arctic sea ice, and other climate-related changes. The impacts of climate change on people and nature are increasingly apparent. Unprecedented flooding, heat waves, and wildfires have cost billions in damages.

  4. PDF Climate Change: Impacts, Vulnerabilities and Adaptation in ...

    This book outlines the impact of climate change in four developing country regions: Africa, Asia, Latin America and small island developing States; the vulnerability of these regions to future climate change; current adaptation plans, strategies and actions; and future adaptation options and needs.

  5. PDF Climate change: The Ultimate Challenge for Economics*

    humans are clearly failing, so far, to address climate change. My colleague Paul Romer has made fundamental contributions to understanding the global externality of knowledge, and we learn of that . key discovery in his essay. This essay addresses the climate-change exter-nality - its sources, its potential impacts, and the policy tools that are

  6. Climate Change and Global Warming: The role of the International Community

    approaches and tools for managing risks associated with climate change (adaptation solutions). Managing climate change risks is crucial because of the irreversible threats it poses to sustainable development. "Responding to climate change involves an iterative risk management process that includes both adaptation and mitigation and takes into ...

  7. PDF LIFE BELOW WATER: WHY IT MATTERS Over 3 billion people

    nt need to safeguard this vast, yet fragile, resource. The drastic reduction in human activity brought about by the COVID-19 crisis, while r. oted in tragedy, is a chance for oceans to recuperate ...

  8. PDF Climate Change, Development, Poverty and Economics

    environment, climate or sustainability. A key factor in all this is climate change. Climate change is not the only environmental problem we face. Nor is the only threat to global prosperity.it But climate changeis unique in its magnitude and the vast risks it poses. It is a potent threat-multiplier for other urgent concerns,

  9. PDF Responding to the climate threat: essays on humanity's greatest

    describe the nature of climate problems, then dene the potential harm to humans and follow with a discussion of the need for deeper understanding problems and potential solutions, along with the tradeos. I hope that readers will be also recog-nize the inherited challenges of climate change in our society when people who are

  10. PDF The carbon cycle: Better understanding carbon-climate feedbacks and

    A carbon-climate 'feedback' refers to the efect that a changing climate has on carbon sinks, altering the amount of carbon they absorb or release, which in turn either dampens or further exacerbates climate change. FIGURE 3. Accelerating feedback loops between the climate and carbon cycle may amplify warming.

  11. PDF Perspectivesonclimatechangeandsustainability

    All entries for water stress and flooding represent the additional impacts of climate change relative to the conditions projected across the range of SRES scenarios A1FI, A2, B1 and B2. Adaptation to climate change is not included in these estimations. For extinctions, 'major' means ~40 to ~70% of assessed species.

  12. 10 Solutions for Climate Change

    It would also take far less land to grow the crops necessary to feed humans than livestock, allowing more room for planting trees. Stop Cutting Down Trees —Every year, 33 million acres of ...

  13. PDF To Climate Change

    GRID-Arendal 2019(REDD) that fund the preservation of carbon- cap. uring ecosystems.Adapting these initiatives to support international eforts to restore whale populations could lead to a breakthrough in the fight again. t climate change. The carbon capture potential of whales i. truly startling. Whales accumulate carbon in their bodies during.

  14. Causes and Effects of Climate Change

    As greenhouse gas emissions blanket the Earth, they trap the sun's heat. This leads to global warming and climate change. The world is now warming faster than at any point in recorded history ...

  15. PDF The Economics of Climate Change IMF F&D

    Time is running out to save our planet, and everyone has a responsibility to act. Illustrator Davide Bonazzi's December's 2019 cover likens the threat of climate change to the closing jaws of a crocodile, shown in silhouette against a steadily warming earth. FINANCE & DEVELOPMENT.

  16. Climate change: a threat to human wellbeing and health of the planet

    Climate Change and Land, an IPCC special report on climate change, desertification, land degradation, sustainable land management, food security, and greenhouse gas fluxes in terrestrial ecosystems was launched in August 2019, and the Special Report on the Ocean and Cryosphere in a Changing Climate was released in September 2019.

  17. A review of the global climate change impacts, adaptation, and

    Abstract. Climate change is a long-lasting change in the weather arrays across tropics to polls. It is a global threat that has embarked on to put stress on various sectors. This study is aimed to conceptually engineer how climate variability is deteriorating the sustainability of diverse sectors worldwide.

  18. What Are the Solutions to Climate Change?

    But according to the Intergovernmental Panel on Climate Change's Special Report on Global Warming of 1.5°C, in order to meet the goal of reducing global carbon emissions by at least 45 percent ...

  19. Explore 7 Climate Change Solutions

    Going Further. Option 1: Develop a climate plan. Scientists say that in order to prevent the average global temperature from rising more than 1.5 degrees Celsius, the threshold beyond which the ...

  20. Global warming

    Modern global warming is the result of an increase in magnitude of the so-called greenhouse effect, a warming of Earth's surface and lower atmosphere caused by the presence of water vapour, carbon dioxide, methane, nitrous oxides, and other greenhouse gases. In 2014 the IPCC first reported that concentrations of carbon dioxide, methane, and ...

  21. Essay: To fix climate anxiety (and also climate change), we first have

    Then a college student asked me about climate anxiety. It came up again on social media, and again in personal essays and polls. This paralyzing dread was suddenly the talk of the town — but it ...

  22. Climate Change: Evidence and Causes: Update 2020

    C ONCLUSION. This document explains that there are well-understood physical mechanisms by which changes in the amounts of greenhouse gases cause climate changes. It discusses the evidence that the concentrations of these gases in the atmosphere have increased and are still increasing rapidly, that climate change is occurring, and that most of ...

  23. Climate Change

    Global warming is causing devastating effects, and worsening many disasters such as droughts, storms, and heatwaves. The warmer climate tends to retain, collect and then drop more water influencing the weather patterns to change where dry areas become drier and wet areas wetter (Price et al., 2020). The problem increases stress on the ecosystem ...

  24. Climate Change: Evidence, Impacts, and Choices: PDF Booklet

    is intended to help people understand what is known about climate change. First, it lays out the evidence that human activities, especially the burning of fossil fuels, are responsible for much of the warming and related changes being observed around the world. Second, it summarizes projections of future climate changes and impacts expected in ...