Knowledge Tree
global warming
Also known as: 2°C global warming, 2.5°C global warming, 3°C global warming
synthesized from dimensionsGlobal warming is the long-term, ongoing rise in Earth’s average surface and ocean temperatures, driven primarily by an energy imbalance in the climate system. This imbalance occurs when human-induced greenhouse gas emissions trap more heat within the atmosphere than is radiated back into space energy imbalance mechanism. The scientific consensus, supported by national academies and major international bodies like the IPCC, identifies human activity as the unequivocal cause of this warming IPCC unequivocal causation.
The core drivers of this phenomenon are anthropogenic emissions, specifically carbon dioxide (CO2), methane (CH4), and nitrous oxide (N2O), resulting from fossil fuel combustion, industrial processes, cement production, and deforestation primary human causes. While natural factors such as solar fluctuations contribute to climate variability, they are secondary to the dominant influence of human activity natural contributions. Furthermore, feedback mechanisms—such as the role of water vapor, which accounts for approximately two-thirds of the greenhouse effect, and cloud changes—serve to amplify the initial warming caused by these emissions water vapor two-thirds cloud amplification.
Evidence for global warming is extensive and multifaceted, including direct measurements of rising air and ocean temperatures, widespread retreat of glaciers, loss of Arctic sea ice, and global sea-level rise direct measurements of warming Arctic sea-ice recession. Recent decades have seen warming rates typically ranging between 0.11°C and 0.20°C per decade recent warming rate recent warming rate. These physical changes are accompanied by biological shifts and an increase in the frequency and intensity of extreme weather events, such as heat waves, droughts, and intensified rainfall current observed effects Texas rainfall deaths.
Scientific agreement on the reality and human cause of global warming is robust. Multiple analyses of peer-reviewed literature indicate that approximately 97% of climate papers support the consensus 97% paper consensus, with surveys of climate scientists showing agreement levels of 90% or higher 90% scientist agreement. While minor uncertainties exist regarding climate sensitivity and aerosol interactions, these do not challenge the fundamental conclusion that greenhouse gases are the primary driver of observed warming.
The significance of global warming lies in its projected future impacts, which include risks of crop failures, expanded drought regions, and further sea-level rise drought crop risks. To mitigate these risks, international frameworks like the Paris Agreement aim to limit warming to well below 2°C, ideally 1.5°C, above pre-industrial levels Paris Agreement goals. Achieving these targets requires substantial, rapid reductions in greenhouse gas emissions through strategies such as transitioning to carbon-free electricity, implementing carbon pricing, and shifting consumption patterns IPCC electricity shift carbon pricing incentives.
Model Perspectives (3)
openrouter/x-ai/grok-4.1-fast definitive 95% confidence
Global warming is defined as the long-term rise in Earth's surface and ocean temperatures due to greenhouse gases from human activities, such as increment in temperature from GHGs and constant rise trapping infrared. The U.S. National Climate Assessment states human emissions have unequivocally caused it, with risks growing without cuts U.S. National Climate Assessment on causes. Evidence includes rising air and ocean temperatures, sea levels, retreating glaciers, and biological changes per NASA direct measurements of warming. Most warming since 1975 occurred at 0.15-0.20°C per decade recent warming rate, recently at 0.2°C/decade. Consensus is strong: 97% of papers agree it's human-caused 97% paper consensus, 90% of publishing scientists 90% scientist agreement, and national academies recognize it academies recognize evidence. Causes include fossil fuels emitting CO2, CH4 (19% forcing), N2O fossil fuel contributions, methane as second driver. Impacts encompass Arctic sea-ice loss Arctic sea-ice recession, migration shifts marine migration variability, dry regions expanding, extreme weather like intensified Texas rain Texas rainfall deaths, sea-level rise from melting ice melt sea rise. IPCC urges near-zero carbon electricity by 2050 for <2°C IPCC electricity shift; without action, 2.6-4.8°C expected projected 21st century warming. Mitigation includes diet shifts (e.g., less animal foods), carbon pricing carbon pricing incentives.
openrouter/x-ai/grok-4.1-fast definitive 50% confidence
{"content":"Global warming refers to the current rise in Earth's surface temperatures driven by human-induced greenhouse gas emissions, creating an energy imbalance that traps more heat than is reradiated to space global warming definition energy imbalance mechanism. According to NASA, eleven international science academies in 2005 affirmed significant warming evidenced by rising air and ocean temperatures, sea levels, retreating glaciers, and ecosystem changes, attributing most recent decades' warming to human activities NASA academies statement. Strong scientific consensus exists, with Science Feedback noting agreement that rising CO2 and methane cause observed warming over the last 50 years scientific consensus on causes, a 97% rate in peer-reviewed studies confirmed by 2016 reanalysis 97% consensus reanalysis, and John Cook's examination of 11,944 abstracts from 1991-2011 Cook abstracts analysis.\n\nHuman activities drive it primarily via fossil fuel combustion, cement production, deforestation, and other sources emitting CO2—the key greenhouse gas—plus methane and nitrous oxide primary human causes CO2 as primary gas main GHGs listed. Observed effects include sea ice loss, glacier melt, sea level rise, and intense heat waves per Springer current observed effects; the 2007 IPCC report deemed warming unequivocal with rising disaster frequency 2007 IPCC findings. Future risks encompass midlatitude droughts and crop failures (University of Maryland's Alan Robock) and more wildfires, droughts, and cyclone intensity drought crop risks future impacts. Though some warming links to natural factors like solar fluctuations natural contributions, anthropogenic dominance prevails.\n\nMitigation emphasizes 50-80% GHG cuts by 2050 (IPCC via Frontiers) IPCC emission reductions, carbon pricing for incentives (Nature) carbon pricing role, and Paris Agreement limits below 2°C ideally 1.5°C Paris Agreement goals. The Fifth IPCC Assessment details status and impacts IPCC AR5.",\"confidence\":0.95,\"suggested_concepts\":[\"greenhouse gases\",\"IPCC\",\"Paris Agreement\",\"CO2 emissions\",\"fossil fuel combustion\",\"scientific consensus\",\"sea level rise\",\"extreme weather events\",\"carbon pricing\",\"geoengineering\",\"crop yield declines\",\"radiative forcing\",\"methane emissions\",\"deforestation\",\"solar radiation management\"],\"relevant_facts\":[1,4,5,6,7,8,9,11,16,23,25,26,27,28,33,38,45,46,47,56,58,60]}
openrouter/x-ai/grok-4.1-fast 92% confidence
Global warming is defined as the process leading to an average rise in Earth's surface temperature and nearby atmospheric layers primarily due to human activities global warming definition. The 2023 Intergovernmental Panel on Climate Change (IPCC) report, as cited by Springer and ABC News, states that human activities have unequivocally caused a 1.1 °C rise since pre-industrial times, with an observed rate of 0.2 °F (0.11 °C) or less per decade as of 2023 IPCC 1.1°C human-caused rise recent warming rate IPCC unequivocal causation. Scientific consensus is strong: a 2014 Netherlands Environmental Assessment Agency survey found 90% of prolific climate scientists agreeing greenhouse gases are the main cause, while a Mother Jones analysis reported only 0.17% of peer-reviewed papers question it 90% scientist agreement 0.17% papers question. Key drivers include anthropogenic greenhouse gas emissions from fossil fuel combustion and industrialization, enhancing the greenhouse effect, with water vapor accounting for two-thirds and cloud changes likely amplifying it further per The Royal Society and Springer sources anthropogenic GHG enhancement water vapor two-thirds cloud amplification. Model projections from The Royal Society indicate continued substantial warming over decades to centuries absent emission reductions continued model warming. Earlier surveys showed uncertainty, with mean ratings indicating moderate agreement that warming is underway or future-bound. The Paris Agreement, per mrgscience.com and Nature, targets limiting warming to well below 2°C, pursuing 1.5°C. Uncertainties like climate sensitivity and aerosols do not undermine the consensus on greenhouse gases as primary driver, per Science Feedback.
Facts (153)
Sources
Comprehensive Overview on the Present State and Evolution of ... link.springer.com Aug 9, 2024 35 facts
claimGarcia-Soto et al. assert that rapid global warming observed in recent decades has far-reaching implications for weather, climate, ecosystems, human society, and the economy.
claimGlobal warming is defined as the increment in the temperature of the Earth's surface caused by the effect of greenhouse gases released into the atmosphere by human activities.
claimGlobal warming causes very dry regions worldwide to expand further.
referenceRaidas and Chachane published research on global warming and climate change in the journal 'Naveen Shodh Sansar' in 2018.
claimGlobal warming, defined as the constant rise in surface and ocean temperatures worldwide, is caused by the buildup of CO2 in the atmosphere, which traps infrared radiation released from the Earth's surface.
claimHuman activities, particularly the excessive use of fossil fuels as energy sources, contribute significantly to global warming by increasing the concentration of greenhouse gases such as carbon dioxide (CO2), methane (CH4), nitrous oxide (N2O), and water vapor in the atmosphere.
claimScientists attribute long-term ocean warming trends to global warming caused by elevated concentrations of anthropogenic greenhouse gases, such as CO2, combined with natural variability.
claimEarth's Energy Imbalance (EEI) is predominantly caused by human-induced greenhouse gas emissions and is a key factor in ongoing global warming.
referenceGadzhiev, N., Vagapova, A., and Yaumieva, E. published a paper in 2023 titled 'Climate change and global warming: the global carbon cycle' in the BIO Web of Conferences.
referenceAl-Ghussain reviewed the driving forces of global warming, identified major contributors to the phenomenon, and presented mitigation techniques.
claimMethane (CH4) emissions are the second largest human-caused driver of global warming, accounting for approximately 19% of the radiative forcing caused by long-lived greenhouse gases.
referenceHe, Y., Manful, D., Warren, R., Forstenhäusler, N., Osborn, T.J., Price, J., Jenkins, R., Wallace, C., and Yamazaki, D. published a study in 2022 titled 'Quantification of impacts between 1.5 and 4 °C of global warming on flooding risks in six countries' in the journal Climatic Change.
claimAlifu et al. (2022) found that global warming enhances river flooding.
measurementMost global warming has occurred since 1975, with an average rate of approximately 0.15 to 0.20 °C per decade.
claimGlobal warming enhances the atmosphere's moisture retention and raises seawater surface temperatures, which intensifies storms and increases the probability of hurricanes through higher wind speeds.
claimGlobal warming does not occur at a uniform rate; temperatures may rise by 5 °C in one zone while dropping by 2 °C in another, as extremely cold winters in one location can be balanced by warm winters elsewhere.
claimObserved effects of global warming already being experienced include loss of sea ice, melting of glaciers and ice sheets, sea level rise, and more intense heat waves.
referenceThe Fifth Assessment Report of the Intergovernmental Panel on Climate Change (IPCC) provides a detailed presentation of the current status and anticipated impacts of climate change and global warming worldwide.
claimThe first step in mitigating global warming and lowering greenhouse gas emissions is to reinforce policies that accelerate the adoption of clean and efficient energy technologies.
claimGlobal warming is defined as the current increase in global temperature due to the greenhouse gas effect released into the atmosphere by humans, while climate change encompasses the diverse effects of global warming on the Earth’s climate system, including elevated sea levels, glacier melt, shifts in precipitation patterns, alterations in the frequency of extreme weather events, varying seasons, and crop yield fluctuations.
claimGlobal warming causes a decline in oxygen solubility at the ocean surface, which reduces the quantity of subducted and convected oxygen.
referenceHansen et al. updated the Goddard Institute for Space Studies (GISS) examination of worldwide surface temperature alteration, compared alternative analyses, and addressed questions regarding the perception and reality of global warming.
referenceBedair, H., Alghariani, M.S., Omar, E., Anibaba, Q.A., Remon, M., Bornman, C., Kiboi, S.K., Rady, H.A., Salifu, A.M.A., Ghosh, S., and Guuroh, R.T. published a study in 2023 titled 'Global warming status in the African continent: sources, challenges, policies, and future direction' in the International Journal of Environmental Research.
claimIncreased water vapor contributes to global warming by trapping outgoing long wave radiation, and as the atmosphere warms, more energy becomes available to evaporate surface water and store it as vapor.
claimThe main drivers of global warming worldwide are human activities including burning fossil fuels, public transportation, electricity generation, industry and manufacturing, agriculture, farming livestock, oil and gas development, buildings, deforestation, and lifestyle choices.
claimThe authors of the study identify a limitation in existing literature, noting that few studies evaluate and correlate global warming, climate change, greenhouse gases, and renewable energy parameters together.
claimSome global warming can be attributed to natural events such as volcanic eruptions, fluctuations in solar radiation, tectonic shifts, and changes in Earth's orbit.
claimThe energy industry is the primary source of global greenhouse gas emissions, which significantly impact climate change and global warming.
referenceHe et al. assessed flood risks resulting from global warming in Egypt, Ethiopia, Ghana, China, India, and Brazil by using a uniform set of models that incorporated climate scenarios, initial and future periods, and hazard metrics.
claimPotential future impacts of global warming include more frequent wildfires, longer drought periods in some regions, and increases in wind intensity and precipitation from tropical cyclones.
claimIf no measures are taken to reduce human-induced greenhouse gas emissions, the global average temperature will increase further in the coming years, exacerbating the negative effects of climate parameters.
claimAfter the 1960s, the scientific approach to climate change shifted as global warming increased, leading to the dominant idea that human activities affect the climate system in addition to natural causes.
referenceWarren, R., Price, J., Forstenhäusler, N., Andrews, O., Brown, S., Ebi, K., and Wright, R. published a study in 2024 titled 'Risks associated with global warming of 1.5 to 4 °C above pre-industrial levels in human and natural systems in six countries' in the journal Climatic Change.
claimThe most significant reason for global warming in the last century is the increase in greenhouse gas emissions in the atmosphere resulting from human actions and industrialization.
claimTwo-thirds of global warming can be attributed to water vapor, and the amount of water vapor entering the atmosphere determines the extent of additional warming.
Scientific consensus on climate change - Wikipedia en.wikipedia.org 27 facts
measurementA 2014 survey of 1,868 climate scientists by the Netherlands Environmental Assessment Agency found that 90% of respondents with more than 10 peer-reviewed papers related to climate agreed that greenhouse gases were the main cause of global warming.
claimScientists have warned that the world is warming at a record rate of 0.2 degrees Celsius per decade.
claimIncreased global warming will lead to worse environmental impacts.
quotePeter Doran and Maggie Kendall Zimmerman wrote: "It seems that the debate on the authenticity of global warming and the role played by human activity is largely nonexistent among those who understand the nuances and scientific basis of long-term climate processes."
claimThe national science academies of all major industrialized countries have recognized the evidence for global warming due to human influence.
measurementIn a survey of scientists, 73.3% attributed 70–100% of recent global warming to anthropogenic causes, while 1.5% attributed zero role to humans.
measurementA 2013 study of over 4,000 peer-reviewed papers on climate science published since 1990 found that 97% of the papers agree that global warming is happening and is human-caused.
measurementRegarding the 1990 IPCC estimate of warming at 0.3 °F (0.17 °C) per decade throughout the 21st century, 13 (15%) of the 118 scientists surveyed by the Center for Science, Technology, and Media in 1991 expressed skepticism, 39 (44%) emphasized uncertainty, and 37 (42%) agreed with the estimate.
referenceBart Verheggen and colleagues published a reply to the comment on their study 'Scientists' Views about Attribution of Global Warming' in Environmental Science & Technology on December 2, 2014.
accountJohn Cook examined 11,944 abstracts from peer-reviewed scientific literature published between 1991 and 2011 that matched the topics 'global climate change' or 'global warming'.
measurementSurvey respondents rejected the thesis that 'there is enough uncertainty about the phenomenon of global warming that there is no need for immediate policy decisions' by a 15% to 80% margin.
claimHuman activities causing global warming include fossil fuel combustion, cement production, and land use changes such as deforestation, with a significant supporting role from other greenhouse gases such as methane and nitrous oxide.
quotePeter Doran and Maggie Kendall Zimmerman wrote: "It seems that the debate on the authenticity of global warming and the role played by human activity is largely nonexistent among those who understand the nuances and scientific basis of long-term climate processes."
referenceS. V. Avakyan published a study titled 'The role of solar activity in global warming' in the Herald of the Russian Academy of Sciences in 2013.
claimA 2016 reanalysis confirmed that the finding of 97% consensus in published climate research that humans are causing recent global warming is robust and consistent with other surveys of climate scientists and peer-reviewed studies.
claimThe 1990 Cutter Information Corporation survey of climate researchers revealed widespread agreement that global warming is occurring, that it will cause negative impacts like sea level rise, and that reducing carbon dioxide emissions and halting deforestation are appropriate responses.
measurementIn the Bray and von Storch surveys, the mean response to the statement 'We can say for certain that global warming is a process already underway' (where 1 represented strong agreement and 7 strong disagreement) improved from 3.39 in the first survey to 2.41 in the second survey.
measurementActual global warming between 1970 and 2000 was approximately 0.4 °C, which largely matched the 'moderate global warming' scenario predicted by the 1978 National Defense University survey.
claimS. Robert Lichter reported on 24 April 2008 that climate scientists agree on the existence of global warming but disagree on the associated dangers and express distrust in media coverage of the topic.
measurementIn a survey of scientists, the statement 'global warming will occur in the future' received a mean rating of 2.6 on a scale of 1 to 7, where 1 indicated strong agreement and 7 indicated strong disagreement.
measurementIn the 1990 Cutter Information Corporation survey, approximately 30% of respondents believed there was a less than 50% chance that global warming would reach or exceed 2 °C (3.6 °F) over the next 100 years, while nearly 40% thought such temperatures were at least 75% likely.
measurementAs of 2023, the actual rate of warming observed had been 0.2 °F (0.11 °C) or less per decade.
measurementIn the 1991 Center for Science, Technology, and Media survey, 52% of respondents thought the rate of warming would likely be lower than the 1990 IPCC estimate, while 8% thought it would be higher.
measurementResearchers from the Netherlands Environmental Assessment Agency surveyed 1,868 climate scientists in 2014 and found that 90% of those with more than 10 peer-reviewed papers related to climate explicitly agreed that greenhouse gases were the main cause of global warming.
measurementA 2014 analysis published in Mother Jones reported that only 0.17 percent of peer-reviewed papers question global warming.
referenceJames Lawrence Powell published 'The State of Climate Science: A Thorough Review of the Scientific Literature on Global Warming' in Science Progress.
measurementIn a survey of scientists, the statement 'global warming is already underway' received a mean rating of 3.4 on a scale of 1 to 7, where 1 indicated strong agreement and 7 indicated strong disagreement.
Sustainable Energy Transition for Renewable and Low Carbon Grid ... frontiersin.org Mar 23, 2022 20 facts
claimThe combustion of fossil fuels produces greenhouse gases such as carbon dioxide (CO2), sulphur dioxide (SO2), and nitrous oxides (NOx), which contribute to global warming.
claimConsequences of global warming include more frequent extreme weather events such as heat waves, storms, flooding, and droughts, as well as temperature-related stress for plants and humans, rising sea levels, and altered occurrences of pathogenic organisms.
referenceW. K. Darkwah, B. Odum, M. Addae, and D. Koomson analyzed the greenhouse gas effect and the impact of greenhouse gases on global warming in a 2018 study.
claimThe transition to a sustainable energy future faces the twin challenges of expanding energy access and mitigating global warming by controlling greenhouse gas emissions.
perspectiveGovernments should develop regulations and policies that seek to meet growing energy needs while addressing concerns over emissions and global warming.
claimGlobal warming poses risks to human society, as rising global temperatures may have serious consequences for the economy and social life.
claimGrowing electricity demand and increased economic activity have driven higher consumption of fossil fuels, which has contributed to the growth of greenhouse gas emissions and global warming.
claimGlobal warming potential (GWP) is a measure of how much a given mass of a chemical substance adds to global warming over a specified time, defined as the ratio of the warming caused by a substance to the warming caused by a similar mass of carbon dioxide.
claimGreenhouse gas emissions should be reduced by between 50 and 80% by the year 2050 to avoid the consequences of global warming.
claimThe Intergovernmental Panel on Climate Change (IPCC) recommends reducing greenhouse gas emissions by 50–80% by the year 2050 to mitigate the consequences of global warming.
claimGlobal warming is the effect of the imbalance between the heat received by the Earth and the heat reradiated into space.
referenceWallington, Srinivasan, Nielsen, and Highwood published 'Greenhouse Gases and Global Warming' in the Encyclopedia of Life Support Systems (EOLSS) under the auspices of UNESCO in 2004.
claimSolar radiation management technologies, a type of geoengineering, modify terrestrial albedo or reflect incoming shortwave solar radiation back to space to address global warming.
claimGlobal warming is the primary environmental issue of the current era, placing carbon emission reduction at the center of global environmental policy.
claimCarbon dioxide, methane, and nitrous oxides are the primary gases that contribute to global warming.
claimClimate change is the phenomenon where climatic factors change due to global warming.
claimEnergy security concerns re-emerged in the 2000s due to rapid energy demand growth in Asia, gas supply disruptions in Europe, and pressures related to emissions and global warming.
claimGlobal warming refers to the process leading to the average rise in the Earth’s temperature and the temperature of atmospheric layers close to Earth due to human activities.
claimGeoengineering schemes that use solar radiation management technologies to modify terrestrial albedo or reflect incoming shortwave solar radiation back to space provide an alternative solution to the challenge of global warming.
claimElectricity generation is a major source of greenhouse gas emissions, which contribute to global warming and climate change, threatening sustainable development.
ESS Subtopic 6.2: Climate change – Causes and Impacts mrgscience.com 8 facts
claimGlobal warming causes polar ice sheets and glaciers to melt, which contributes to sea-level rise.
perspectiveDanish economist Bjørn Lomborg argues that it is important to question orthodox opinions, including the widespread fear of global warming.
claimThe energy imbalance caused by radiative forcing greater than 1 contributes to global warming, more frequent extreme weather events, and rising sea levels.
claimCarbon dioxide (CO2) is the primary greenhouse gas contributing to global warming.
claimScientists have developed a carbon dioxide sequestration technique that produces 'supergreen' hydrogen fuel, potentially addressing energy needs and global warming simultaneously.
claimScientists have expressed concern regarding the effects of global warming on infectious diseases, as reported by Science Daily on 22 May 2007.
claimAnthropogenic emissions of greenhouse gases have enhanced the greenhouse effect, leading to global warming and climate change.
claimThe Paris Agreement sets a goal to limit global warming to well below 2°C, with efforts to limit the temperature increase to 1.5°C to avoid triggering tipping points.
Health and environmental impacts of diets worldwide globalnutritionreport.org 7 facts
measurementIf the dietary patterns of Africa and Asia were adopted globally, greenhouse gas emissions would be 60–75% above sustainable levels required to limit global warming to below 2°C.
claimThe 2021 Global Nutrition Report states that to reduce greenhouse gas emissions sufficiently to avoid dangerous levels of global warming, it is necessary to prioritize policy initiatives aimed at reducing the amounts of animal-based foods in human diets, a change that is also warranted on health grounds.
perspectiveTo avoid dangerous levels of global warming, it is necessary to increase and strengthen policy initiatives aimed at reducing the amounts of animal-based foods in human diets and food production.
claimIf the dietary patterns of Northern America were adopted globally, greenhouse gas emissions would exceed the levels required to limit global warming to below 2°C by more than six times.
measurementIn 2018, global food-related greenhouse gas emissions exceeded the limit required by the Paris Climate Agreement to limit global warming to below 2°C by 74%.
measurementIf the dietary patterns of Oceania were adopted globally, greenhouse gas emissions would be more than five times above the target value required to limit global warming to below 2°C.
measurementIf the dietary patterns of Latin America and Europe were adopted globally, greenhouse gas emissions would be four times the target value required to limit global warming to below 2°C.
Climate change: evidence and causes | Royal Society royalsociety.org 5 facts
measurementIf no technological or policy changes are implemented to reduce greenhouse gas emission trends from their current trajectory, globally-averaged warming of 2.6 to 4.8 °C (4.7 to 8.6 °F) is expected during the 21st century in addition to warming that has already occurred.
claimMost observed global warming over the past 50 years cannot be explained by natural causes and requires a significant role for human activities.
claimThe amount and rate of warming expected for the 21st century depends on the total amount of greenhouse gases that humankind emits.
claimAll model projections indicate that Earth will continue to warm considerably more over the next few decades to centuries.
claimThe net global effect of cloud changes, driven by warming and increased water vapor, is likely to amplify global warming.
Global Warming: The Scientific Consensus climate.envsci.rutgers.edu 5 facts
perspectiveAlan Robock advocates for a three-pronged response to global warming: adaptation, improved knowledge, and mitigation.
claimPotential human impacts of global warming include stronger storms, coastal flooding and erosion, forest declines, desertification, more intense droughts and floods, the spread of tropical diseases, reduced winter sports opportunities, increased human mortality and illness from heat, and economic and geographical dislocations.
claimAlan Robock identifies midlatitude drought and resulting crop failures in global breadbaskets as a significant potential danger resulting from global warming.
referenceIPCC studies indicate that while there may be large regional increases and decreases in crop productivity due to global warming, there is currently no projected net large change in global food production.
claimDeveloped nations produce the majority of greenhouse gases, but developing countries are projected to be more severely affected by the impacts of global warming.
Misleading U.S. Department of Energy climate report chooses bias ... science.feedback.org Aug 5, 2025 5 facts
claimScientific evidence indicates that solar activity has had a negligible impact on recent global warming.
claimThe scientific community agrees that the increase in greenhouse gases, particularly CO2 and methane, is the primary cause of global warming observed over the last 50 years.
claimUncertainties regarding climate sensitivity and the cooling effect of aerosols do not invalidate the scientific consensus that greenhouse gases are the main driver of global warming.
claimThe U.S. Department of Energy (DOE) climate report acknowledges carbon dioxide as a greenhouse gas but omits scientific evidence linking recent global warming to rising carbon dioxide concentrations caused by human activities.
claimThere is no scientific mechanism that explains more than a negligible portion of recent global warming through solar influence.
Scientific Consensus - NASA Science science.nasa.gov Oct 21, 2024 4 facts
claimEvidence for significant global warming includes direct measurements of rising surface air temperatures and subsurface ocean temperatures, as well as phenomena such as increases in average global sea levels, retreating glaciers, and changes to many physical and biological systems.
claimEleven international science academies stated in 2005 that there is strong evidence that significant global warming is occurring, evidenced by direct measurements of rising surface air temperatures, subsurface ocean temperatures, increases in average global sea levels, retreating glaciers, and changes to many physical and biological systems, and that it is likely that most of the warming in recent decades can be attributed to human activities.
claimEleven international science academies stated in 2005 that climate change is real, significant global warming is occurring, and it is likely that most of the warming in recent decades can be attributed to human activities.
quoteEleven international science academies stated in a joint statement that significant global warming is occurring, evidenced by direct measurements of rising surface air and ocean temperatures, rising average global sea levels, retreating glaciers, and changes to physical and biological systems, and that most of the warming in recent decades can be attributed to human activities.
How governments address climate change through carbon pricing ... nature.com Apr 15, 2025 4 facts
claimCarbon pricing policies, such as taxes and emission trading systems, are considered central instruments for limiting global warming because they provide households and businesses with economic incentives to reduce greenhouse gas emissions.
claimCarbon pricing policies, including taxes and emission trading systems, serve as central instruments for governments to limit global warming by providing households and businesses with economic incentives to reduce greenhouse gas emissions.
claimThe Paris climate agreement has a main objective to limit global warming to a level below 2 °C, which requires countries to adjust their policy portfolios to reduce greenhouse gas emissions.
claimThe Paris climate agreement has a main objective to limit global warming to a level below 2 °C, requiring countries to adjust their policy portfolios to reduce greenhouse gas emissions.
A review of climate change impacts on migration patterns of marine ... frontiersin.org Oct 25, 2024 3 facts
referenceKumar et al. (2020) observed that global warming is leading to a recession of Arctic sea-ice cover, based on remote sensing observations and model reanalysis.
claimGlobal warming has induced variability in the timing of migration for many marine mammal species, including Arctic endemics.
referenceVacquié-Garcia et al. (2024) analyzed the foraging habits of Northwest Atlantic hooded seals over 30 years and modeled future habitat suitability under global warming.
Realist Review on Just Transition Towards Low Emission, Climate ... link.springer.com Jan 5, 2026 3 facts
claimTo limit global warming to below 2 °C and pursue efforts to limit the temperature increase to 1.5 °C above pre-industrial levels, almost all electricity must be supplied by zero or low-carbon sources by 2050, according to the Intergovernmental Panel on Climate Change.
claimThe Paris Agreement aims to keep global warming below 2 °C while attempting to limit the temperature increase to 1.5 °C above pre-industrial levels.
measurementHuman activities have unequivocally caused global warming, resulting in a 1.1 °C rise in global surface temperature since the pre-industrial era, according to the 2023 Intergovernmental Panel on Climate Change (IPCC) report.
Dozens of scientists push back on 'fundamentally ... - ABC News abcnews.com Sep 3, 2025 2 facts
referenceThe U.S. National Climate Assessment determined that human activities, principally through emissions of greenhouse gases, have unequivocally caused global warming and that severe climate risks to the United States will continue to grow without deeper cuts in global net greenhouse emissions and accelerated adaptation efforts.
referenceThe Intergovernmental Panel on Climate Change (IPCC) concluded that human activities, principally through emissions of greenhouse gases, have unequivocally caused global warming.
Recent breakthroughs in the valorization of lignocellulosic biomass ... pubs.rsc.org Jun 7, 2025 2 facts
claimA digital tool for measuring global warming impact in construction projects can reduce product-based CO2 emissions by up to 40% and provides more accurate and faster calculations than traditional manual methods.
claimA life cycle assessment (LCA) study concluded that using artificial lightweight aggregates from sand-plastic composite in concrete can reduce the potential for global warming by up to 54.83%.
A critical review on techno-economic analysis of hybrid renewable ... link.springer.com Dec 6, 2023 2 facts
claimThe combustion of fossil fuels releases carbon dioxide, carbon monoxide, and other pollutants, which contribute to the greenhouse effect and are primary drivers of global warming and climate change.
claimThe combustion of fossil fuels releases carbon dioxide (CO2), carbon monoxide (CO), and other harmful pollutants, which contribute to global warming and adverse climate effects.
Designing Carbon Pricing Policies Across the Globe link.springer.com 2 facts
referencePelham (2009) reported that awareness and opinions regarding global warming vary significantly across different regions of the world.
measurementIn the multivariate analysis of expert recommendations for equal lump-sum transfers, the relation with the probability of catastrophic climate damages is positive and significant at the 5% level, while the relation with expected damages for 3°C global warming is negative and significant at the 5% level.
Greater than 99% consensus on human caused climate change in ... iopscience.iop.org Oct 19, 2021 1 fact
procedureThe authors of the current study searched the Web of Science for English-language articles published between 2012 and November 2020 using the keywords 'climate change', 'global climate change', and 'global warming' to re-examine the scientific consensus on climate change.
Climate Shocks Are Redefining Energy Security energypolicy.columbia.edu Jul 15, 2025 1 fact
measurementIntense rainfall in central Texas, which was made more likely by global warming, resulted in more than 130 deaths.
Energy Systems (Chapter 6) - IIASA PURE pure.iiasa.ac.at Sep 22, 2023 1 fact
claimLimiting global warming to well below 2°C requires rapid and deep reductions in energy system carbon dioxide (CO2) and greenhouse gas (GHG) emissions.
An integrated climate-biodiversity framework to improve planning ... ecologyandsociety.org 1 fact
claimThe Intergovernmental Panel on Climate Change (2018) warns that failing to limit global warming to 1.5°C above pre-industrial levels within the decade will result in catastrophic changes to environmental, economic, and social systems.
Actar Publishers actar.com 1 fact
measurementThe construction sector and the built environment are responsible for nearly 40% of the greenhouse gas emissions that contribute to global warming.
Transitioning to renewable energy: Challenges and opportunities iee.psu.edu Jun 11, 2024 1 fact
claimThere is a risk that the global community may fail to deploy renewable energy sources quickly enough to mitigate the effects of global warming.
How a major DOE report hides the whole truth on climate change politico.com Sep 27, 2025 1 fact
claimThe Department of Energy (DOE) report on climate change claims there is "substantial debate" within climate science regarding whether the sun is a primary driver of global warming.
Ecology: Nature's Interactions and Ecosystem Dynamics scholarsresearchlibrary.com 1 fact
claimHuman activities, such as burning fossil fuels and deforestation, disrupt natural nutrient cycles and contribute to global warming and other ecological issues.
How the “Scientific Consensus” on Global Warming Affects ... heritage.org Oct 26, 2010 1 fact
claimThe 2007 IPCC report stated that global warming is unequivocal and that the frequency and intensity of natural disasters are likely to increase.
The technical, geographical, and economic feasibility for solar ... ideas.repec.org 1 fact
referenceManfred Lenzen and Roberto Schaeffer published 'Historical and potential future contributions of power technologies to global warming' in Climatic Change, volume 112, issue 3, pages 601-632.
How the intersection of modern diets, climate, and food systems is ... medicalxpress.com Nov 17, 2025 1 fact
claimGlobal warming and associated extreme weather events, such as droughts and floods, are expected to cause long-term declines in crop yields due to reduced photosynthesis efficiency, faster evaporation, and increased water absorption by plants.
How governments address climate change through carbon pricing ... discovery.researcher.life Apr 15, 2025 1 fact
claimCarbon pricing policies are central instruments for limiting global warming, but their effectiveness varies significantly based on design choices regarding price and emission coverage.
The role of hydrogen in decarbonizing U.S. industry: A review ideas.repec.org 1 fact
referenceSajjad Rezaei, Alejandra Hormaza Mejia, Yanchen Wu, Jeffrey Reed, and Jack Brouwer published 'Global warming impacts of the transition from fossil fuel conversion and infrastructure to hydrogen' in Applied Energy in 2025.
A Scoping Review of Indicators for Sustainable Healthy Diets frontiersin.org Jan 12, 2022 1 fact
claimGreenhouse gases, which lead to global warming, include carbon dioxide, methane, and nitrous oxide.
Energy infrastructure vs climate change: increasing resilience ricardo.com Feb 20, 2025 1 fact
procedureRicardo assessed energy infrastructure vulnerability by assigning ratings to components based on stakeholder engagement and mapping potential exposure to extreme heat under three global warming scenarios: 1.5°C, 2°C, and 2.5°C.
Carbon Pricing for Inclusive Prosperity: The Role of Public Support econfip.org 1 fact
measurementLimiting global warming to 1.5°C instead of 2°C, as interpreted under the 2015 Paris Agreement, could prevent a 5% reduction in global GDP by the year 2100, according to Pretis et al. (2018).
Scientists Say New Government Climate Report Twists Their Work wired.com Jul 30, 2025 1 fact
perspectiveSecretary Wright has characterized the effect of global warming on plant growth as a "plus" due to the benefits of carbon dioxide.
Impact of carbon dioxide removal technologies on deep ... - Nature nature.com Jun 17, 2021 1 fact
claimThe Paris Agreement aims to limit global warming to well below 2 °C and to pursue efforts to limit it to 1.5 °C.
Climate Change & Its Impact on Migration and Breeding Cycles husson.edu Aug 20, 2025 1 fact
claimGlobal temperature increases are causing significant shifts in species migration, disruptions in breeding cycles, and changes in long-established animal behaviors.