Knowledge Tree
greenhouse gas emissions
Also known as: GHGe, Greenhouse gases emissions, greenhouse emissions, GHG emissions
synthesized from dimensionsGreenhouse gas (GHG) emissions are gases released into the atmosphere through human activity that trap heat, serving as the primary and scientifically undisputed driver of modern climate change according to research published by IOPscience. There is overwhelming scientific consensus—with no credible scientific body disagreeing—that these emissions have caused significant warming across the Earth's land, oceans, and troposphere since the Industrial Revolution scientific consensus on human-caused warming.
The energy sector is the dominant source of these emissions, responsible for approximately 75% of global totals energy sector generates nearly 75%. Within this, electricity generation accounts for roughly 26% of emissions electricity 26% of emissions. Other significant contributors include food systems, which account for approximately 34% of global emissions food systems contribute 34% of emissions, and the transport sector, which contributes about 14% transport sector accounts for 14%. The built environment is also a major factor, with some estimates suggesting the construction and operation of buildings account for nearly 40% of global emissions construction sector responsible for nearly 40% of emissions.
Global emissions have continued to rise despite local reduction efforts, with growth rates historically accelerating due to economic expansion and reliance on fossil fuels like coal and natural gas global emissions still increasing. While emissions are geographically concentrated in more industrialized regions, they disperse globally due to their atmospheric persistence according to Springer. The accumulation of these gases has already raised global surface temperatures by approximately 1.1°C above pre-industrial levels, with high-emission scenarios projecting potential warming between 2.6°C and 4.8°C by the end of the century if current trends persist no change leads to high warming.
GHG emissions are a critical environmental indicator, frequently used in academic and policy assessments to measure environmental impact, resource depletion, and biodiversity loss GHG proxy for env impacts. Because of their central role in climate change, they are the most frequently analyzed indicator in environmental literature frequently used indicators related to greenhouse gases.
To mitigate these impacts, global strategies focus on transitioning to renewable energy sources, such as solar and geothermal, which offer significantly lower life-cycle emissions compared to fossil fuels renewable target reduces GHG. Policy frameworks, including the Paris Agreement, international cap-and-trade systems, and carbon pricing, are utilized to track and limit annual increases, though the effectiveness of these measures remains a subject of ongoing study and debate Paris framework for reductions. Ultimately, the scientific community emphasizes that prompt and substantial reductions in these emissions are necessary to limit disruptive societal and environmental impacts necessity of reducing emissions.
Model Perspectives (5)
openrouter/z-ai/glm-5v-turbo definitive 50% confidence
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"content": "Greenhouse gas emissions (GHGE) represent a fundamental environmental indicator frequently analyzed alongside carbon footprint and global warming potential to assess environmental impact. According to research published by Frontiers, climate-related outcomes like GHGE are the most frequently analyzed indicators in environmental literature, appearing in roughly 33.3% of studies frequently used indicators related to greenhouse gases.
Sectoral Contributions
GHGE are driven significantly by human industry and consumption patterns. The construction sector and built environment are responsible for nearly 40% of global emissions construction sector responsible for nearly 40% of emissions, with the U.S. building sector alone accounting for 29% of total emissions [U.S. building sector responsible for 29% of emissions](/facts/c507937e-8151-4b
openrouter/z-ai/glm-5v-turbo definitive 50% confidence
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"content": "Greenhouse gas (GHG) emissions are gases released into the atmosphere that are widely recognized by the scientific community—with greater than 99% agreement in peer-reviewed literature—as the primary driver of modern climate change resulting from human activity since the Industrial Revolution according to research published by IOPscience. These emissions originate predominantly from five economic sectors: energy, industry, transport, buildings, and agriculture, forestry, and other land uses (AFOLU) according to Frontiers.
Scale and Measurement
In terms of magnitude, total GHG emissions reached approximately 55.3 gigatonnes of CO2 equivalent (GtCO2e) in 2018, with fossil fuel combustion accounting for roughly 37.5 GtCO2e of that total according to Frontiers. The energy supply sector is a major contributor, responsible for 34% of net global emissions in 2019 according to Springer. Historically, the annual growth rate of emissions from energy supply accelerated from 1.7% per year (1990–2000) to 3.1% per year (2000–2010) according to Bruckner et al. via Frontiers. Geographically, emissions are higher in the Northern Hemisphere than the Southern Hemisphere, though they disperse globally due to their persistence according to Springer.
Environmental and Health Impacts
The accumulation of these gases traps additional heat, driving up Earth's average temperature above pre-industrial levels according to Frontiers. The Intergovernmental Panel on Climate Change (IPCC) projects this could lead to a global temperature rise between 1.1°C and 6.4°C by the end of the 21st century [according to Frontiers](/facts/7af55d0c
openrouter/z-ai/glm-5v-turbo definitive 50% confidence
```json
{
"content": "Greenhouse gas (GHG) emissions are primarily human-generated pollutants identified by the scientific community as the dominant driver of modern climate change. According to the National Academies of Sciences, Engineering, and Medicine, multiple lines of evidence confirm that these emissions—resulting from human activities—are warming Earth’s surface and changing the climate, a relationship studied for over a century human activities as primary driver. The American Geophysical Union (AGU) reinforces this, stating that to limit disruptive societal impacts, global society must promptly reduce these emissions necessity of reducing emissions.
The energy sector is the most significant contributor, generating nearly 75% of current global greenhouse gas emissions energy sector generates nearly 75%. Beyond energy, food systems are a major source, accounting for approximately 34% of global emissions and contributing to resource depletion and biodiversity loss food systems contribute 34% of emissions. Other notable sources include the transport sector, which accounts for about 14% of global emissions transport sector accounts for 14%.
The physical impact of these emissions is measurable; data indicates the global surface temperature was 1.1 °C higher between
openrouter/x-ai/grok-4.1-fast definitive 92% confidence
Greenhouse gas (GHG) emissions are widely recognized as a primary driver of global warming, with no scientific body disagreeing on human-induced causes according to Wikipedia summarizing scientific consensus. Major sources include the energy sector at over 75% of global totals per OAE Publishing energy sector dominates emissions, electricity generation at 26% per Frontiers electricity 26% of emissions, fossil fuels like coal and natural gas per Frontiers and Brookings Institution fossil fuels key contributors, agriculture at 17% per Springer and FAO agriculture 17% emissions, and infrastructure/cities at 58% per Green Climate Fund. Emissions have risen globally despite local reductions, per National Academies global emissions still increasing, with rates accelerating due to economic growth and coal use per Frontiers emissions growth 1.7% to 3.1%. Without interventions, high-emission scenarios predict 2.6-4.8°C warming per The Royal Society no change leads to high warming. Reduction strategies emphasize renewables replacing fossils per World Future Council renewables reduce GHG emissions, nuclear with zero operational emissions per World Nuclear Association nuclear zero operational GHG and low life-cycle per Congressional Research Service, policies like Paris Agreement per PubMed Paris framework for reductions, cap-and-trade per Heritage Foundation and National Academies, and carbon pricing per Nature. Natural gas offers fewest emissions among fossils when managed, per Brookings natural gas lowest fossil GHG.
openrouter/x-ai/grok-4.1-fast definitive 92% confidence
Greenhouse gas (GHG) emissions from human activities unequivocally cause warming on land, oceans, and the troposphere, with no natural explanations, per scientific consensus scientific consensus on human-caused warming. The National Academies of Sciences, Engineering, and Medicine (NAS) affirm humans change Earth's climate primarily through GHG emissions, affecting lives NAS on human climate change. Energy production and consumption drive over two-thirds of total GHG emissions and over 80% of CO2 emissions, per Frontiers reviews energy production >2/3 GHG, with the energy supply sector contributing 35% of anthropogenic GHG in 2010 energy sector 35% in 2010. Electricity generation is a major source threatening sustainable development electricity major GHG source, while the industrial sector adds significantly due to energy demand industrial sector major contributor. Food systems, especially intensified animal-based production, emit substantial GHGs animal food consumption GHG source, with plant-based diets yielding lower emissions plant-based diets lower GHG. GHG emissions serve as a key indicator for climate impacts, correlating with eutrophication and land use GHG proxy for env impacts, used in energy assessments by Streimikiene et al. (2012) GHG per kWh indicator. Reductions via renewables like solar and geothermal lower emissions cost-effectively renewable target reduces GHG, geothermal emits <5% of coal's geothermal low GHG; policies track annual increases policies reduce GHG proxy; carbon pricing shows limited effect carbon pricing limited impact. NAS fast-track studies assess evidence and compare to EPA findings NAS GHG fast-track study.
Facts (274)
Sources
Sustainable Energy Transition for Renewable and Low Carbon Grid ... frontiersin.org Mar 23, 2022 43 facts
claimThe ecological dimension of sustainability focuses on preserving the environment and habitats against the impacts of waste disposal, excessive consumption of Earth’s resources, and greenhouse gas emissions.
referenceEnvironmental Sustainability in energy systems focuses on managing the negative impacts of energy production and use while magnifying positive ones, with key indicators including emission levels for SO2, NOx, CO2, particulate emissions, non-methane volatile organic compounds, land use, GHG emissions, environmental external costs, radionuclides external costs, and severe accidents.
claimElectrification of industries and homes using renewable energy sources is a strategy to reduce global greenhouse gas emissions, which currently originate from sectors including extraction/refining, power generation, transport, agriculture, industry, and residential use.
referenceThe indicator measuring potential negative impacts of global climate change caused by greenhouse gas emissions per 1 kWh of electricity was used in almost all energy technology assessment studies reviewed by Streimikienea et al. (2012).
claimFossil fuel sources, including coal, heavy fuel oil, and natural gas, are significant contributors to greenhouse gas emissions.
measurementGreenhouse gas emissions increased at an average rate of 1.7% between 1990 and 2000, which rose to an average of 3.1% between 2000 and 2010 due to rapid economic growth and increased coal use in the energy mix.
measurementElectricity generation is responsible for approximately 26% of total greenhouse gas emissions.
claimMeeting growing energy demands, increasing electricity access for billions, and reducing greenhouse gas emissions requires a radical shift away from fossil-fuel-focused energy systems.
claimThe transition to a sustainable energy future faces the twin challenges of expanding energy access and mitigating global warming by controlling greenhouse gas emissions.
claimJaramillo-Nieves and Del Río (2010) state that renewable energy sources contribute to economic, social, and environmental sustainability by improving energy access, reducing greenhouse gas emissions, and creating local socioeconomic development opportunities like job creation.
claimThe primary environmental indicators for assessing energy technology include greenhouse gas (GHG) emissions, environmental external costs, radionuclide external costs, perceived future severe accidents, and historical fatal accidents.
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.
measurementBetween 1990 and 2012, greenhouse gas emissions in the 33 member countries of the European Environmental Agency (EEA) decreased by 14%, while greenhouse gas emissions per capita declined by 22% due to increased use of renewable energy.
claimGreenhouse gas emissions are primarily produced by five economic sectors: energy, industry, transport, buildings, and AFOLU (agriculture, forestry, and other land uses).
measurementTotal greenhouse gas emissions in 2018 were approximately 55.3 GtCO2e, with 37.5 GtCO2 attributed to fossil fuel combustion in operations including electricity generation.
claimPhasing out coal-fired power plants and replacing them with renewable and low-carbon electricity generation is among the fastest and easiest methods for controlling greenhouse gas emissions.
claimJefferson (2000) and Colla et al. (2020) identify the decarbonization of grid electricity through low-carbon and renewable sources as a viable option for the energy transition, given that electricity generation is a significant contributor to global greenhouse gas emissions.
claimThe electricity sector faces challenges including growing electricity demand, the need to reduce greenhouse gas emissions, and the requirement to achieve zero-net carbon emissions to align with the Paris Agreement's goal of limiting global temperature increases to 1.5°C.
claimGreenhouse gas emissions contribute to sea-level rise and ocean acidification, the latter of which is caused by the absorption of carbon dioxide by the oceans.
claimSustainable energy reduces dependence on fossil fuels and increases the use of renewable energy sources, thereby reducing greenhouse gas emissions.
claimIncreased greenhouse gas emissions have trapped additional heat, raising the Earth's average temperature above pre-industrial levels.
claimReducing environmental impact in energy development requires lowering greenhouse gas emissions and minimizing the lifecycle environmental impact of energy systems, which can be achieved through waste recycling, treatment, and the adoption of clean technologies.
measurementThe Intergovernmental Panel on Climate Change (IPCC) predicted that greenhouse gas emissions will lead to a global temperature increase of between 1.1 and 6.4°C by the end of the 21st Century.
measurementThe United States experienced a reduction in greenhouse gas emissions between 2006 and 2014 due to the increased use of renewable energy.
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.
claimLiu (2014) identifies renewable energy sources as the primary solution for mitigating greenhouse gas emissions, climate change, and environmental pollution.
measurementThe global annual growth rate of greenhouse gas emissions from the energy supply sector increased from 1.7% per year between 1990 and 2000 to 3.1% per year between 2000 and 2010, according to Bruckner et al. (2014a).
referenceLamb et al. published 'A Review of Trends and Drivers of Greenhouse Gas Emissions by Sector from 1990 to 2018' in 'Environmental Research Letters', volume 16, issue 7, article 073005, in 2021.
claimGreenhouse gas emissions and global climate change are considered the greatest sustainability challenges facing humanity.
claimThe Intergovernmental Panel on Climate Change (IPCC) predicted that greenhouse gas emissions will lead to a global temperature increase of between 1.1 and 6.4°C by the end of the 21st Century.
claimIncreased utilization of geothermal energy can reduce electricity prices, improve reliability, and decrease greenhouse gas emissions.
claimEnergy efficiency and conservation measures reduce greenhouse gas emissions, fuel consumption, electricity grid strain, and the costs associated with both electricity generation and consumption.
claimThe global community is developing decarbonization plans to reduce greenhouse gas emissions in a sustainable manner.
perspectivePublic policy should promote investment in economic and industrial activities that protect the natural environment, foster human and social capital, and mitigate damage from pollution, social conflict, resource waste, and greenhouse gas emissions.
claimEnergy transition represents a path for economic development and innovation that maintains environmental integrity and sustainability, motivated by challenges such as greenhouse gas emissions, climate change, and natural resource depletion.
claimNuclear power generation is an option for reducing greenhouse gas emissions in countries with high electricity demand, though it presents a risk of proliferation for politically unstable governments with weapons agendas.
measurementThe transport sector accounts for approximately 14% of global greenhouse gas emissions, which can be reduced by electrifying transport through the use of electric cars, buses, and trains powered by green electricity.
measurementIn 2010, the energy supply sector contributed 35% of all anthropogenic greenhouse gas emissions.
measurementGreenhouse gas emissions from geothermal-based electricity generation are less than 5% of the total emissions produced by coal-based electricity generation.
measurementEnergy production and consumption account for over two-thirds of total greenhouse gas emissions and over 80% of carbon dioxide emissions.
measurementThe energy sector was the largest contributor to global greenhouse gas emissions in 2010, accounting for approximately 35% of total anthropogenic emissions.
claimRenewable and low carbon energy sources improve power supply, enhance long-term access and utility in energy production, decrease dependence on fossil fuels, and reduce greenhouse gas emissions, according to Rathor and Saxena (2020a) and Nguyen et al. (2020).
claimElectricity generation is a major source of greenhouse gas emissions, which contribute to global warming and climate change, threatening sustainable development.
Comprehensive Overview on the Present State and Evolution of ... link.springer.com Aug 9, 2024 22 facts
measurementThe SSP3-7.0 and SSP5-8.5 scenarios, which represent high and very high greenhouse gas emissions, predict a roughly twofold increase in CO2 emissions by 2100 and 2050 compared to present levels.
claimThe fossil fuel sector contributes significantly to greenhouse gas emissions, necessitating a move toward greener energy options.
claimCoordinated global action, including initiatives to stop deforestation, encourage afforestation, and save natural carbon sinks, is essential to reduce warming and the harm caused by greenhouse gas emissions.
measurementThe yearly growth rate of greenhouse gas emissions from 2021 to 2022 surpassed the growth rate from 2020 to 2021 and exceeded the average growth rate for the previous ten years.
claimSignificant, swift, and consistent decreases in greenhouse gas (GHG) emissions are anticipated to restrict the additional acceleration of sea level rise and the predicted long-term increase in sea levels.
claimFollowing the Paris Agreement, nations are evaluating the financial advantages and challenges of a low-carbon energy transition, with the goal of reducing greenhouse gas emissions by 60% to 80% by 2050.
claimGreenhouse gas emissions are higher in the northern hemisphere than in the southern hemisphere, and because these gases persist long enough to disperse globally, they influence the temperature difference between the two hemispheres.
claimThe surge in specific humidity is likely attributable to the increase in greenhouse gas emissions.
claimHeavy precipitation events, which are a primary factor in flooding, have increased in recent times, particularly in numerous regions of the Northern Hemisphere due to human-induced climate change and the escalation of greenhouse gas emissions.
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.
claimSince the 1997 launch of the Kyoto Protocol and the COP26 conference, industrial sectors, particularly the energy sector, have made efforts to reduce greenhouse gas emissions due to the increasing demand for renewable and clean energy generation.
measurementThe energy sector generates nearly 75% of current greenhouse gas emissions.
measurementThe global surface temperature was 1.1 °C higher between 2011 and 2020 compared to the 1850–1900 period, a change attributed to the increase in greenhouse gas emissions resulting from human activities.
claimThe energy industry is the primary source of global greenhouse gas emissions, which significantly impact climate change and global warming.
measurementThe SSP2-4.5 scenario, representing medium greenhouse gas emissions, projects that CO2 emissions will remain at current levels until the mid-century.
claimThe temperature increment is higher in the northern hemisphere over time due to higher greenhouse gas emissions and the melting of sea ice and snow.
measurementThe SSP1-1.9 and SSP1-2.6 scenarios, representing very low and low greenhouse gas emissions, anticipate that CO2 emissions will reach net zero around 2050 and 2070, respectively.
claimInnovative technologies such as carbon capture and storage may provide ways to lower greenhouse gas emissions.
claimGovernments worldwide are exploring alternative energy sources to reduce greenhouse gas emissions and mitigate ecological impacts due to climate change concerns.
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.
claimGreenhouse gas emissions are higher in the northern hemisphere than in the southern hemisphere, and because these gases persist for long periods, they spread across both hemispheres, influencing the temperature difference between them.
claimThe recent increase in extreme weather occurrences globally indicates an urgent need to reduce greenhouse gas emissions.
Health and environmental impacts of diets worldwide globalnutritionreport.org 16 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.
claimTechnological and management options for reducing environmental impacts other than greenhouse gas emissions exist, but these options are relatively ineffective for reducing greenhouse gas emissions because those emissions are tied to inherent animal characteristics like feed requirements and digestion-related gases.
procedureThe 2021 Global Nutrition Report assessment of environmental impacts of diets included greenhouse gas emissions, cropland use, fresh-water use, and nitrogen and phosphorus application related to fertilizers.
claimShifting towards more plant-based diets is identified as the most efficient method for reducing greenhouse gas emissions within the food system.
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%.
measurementFood production generates more than one-third of all greenhouse gas emissions globally.
referenceThe Global Nutrition Report analysis of food demand estimates from the Food and Agriculture Organization of the United Nations and a database of environmental footprints shows that dietary patterns in Northern America, Oceania, Latin America, Europe, Africa, and Asia consistently exceeded global environmental targets for greenhouse gas emissions, cropland use, freshwater use, and nitrogen and phosphorus application between 2010 and 2018.
measurementBeef and lamb have approximately ten times the greenhouse gas emissions per serving compared to pork, poultry, and dairy products, which in turn have about ten times the emissions of plant-based foods like grains, fruits, vegetables, and legumes.
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.
claimThe environmental impacts of the food system are increasing, as evidenced by data comparing 2010 and 2018 metrics for greenhouse gas emissions, land use, fresh-water use, and nitrogen and phosphorus application.
claimAnimal-based foods generally have higher greenhouse gas emission footprints than plant-based foods because they generate direct emissions from manure and digestion, as well as indirect emissions from feed production which requires significant land, water, and fertilizer resources.
measurementThe foods currently demanded by the global population generate more than one-third of all greenhouse gas emissions.
measurementGlobal food demand, including food loss and waste, generated 17.2 billion tonnes of greenhouse gas emissions (measured in carbon dioxide equivalents, GtCO2eq) in 2018, representing more than a third (35%) of global emissions.
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.
Realist Review on Just Transition Towards Low Emission, Climate ... link.springer.com Jan 5, 2026 14 facts
claimClimate outcomes in a just transition framework include enhanced climate resilience and reduced greenhouse gas (GHG) emissions.
claimMapping activities against outcomes across all sectors shows a high frequency of evidence for four main outcomes: enhanced climate resilience, reduced GHG emissions, optimized socioeconomic and work opportunities, and increased social equality and gender equality.
measurementIn 2018, agriculture and related land-use emissions accounted for 17% of global greenhouse gas emissions across all sectors, according to the Food and Agriculture Organization of the United Nations.
measurementJust transition interventions in the combined ecosystem services and agriculture/food sectors show a lower incidence of reduced greenhouse gas emissions.
measurementInfrastructure, including buildings, cities, industries, and appliances, contributes significantly to greenhouse gas emissions, with cities representing 58% of global greenhouse gas emissions, according to the Green Climate Fund (2021b).
claimThe lack of large-scale interventions designed to drive systemic change and reduce greenhouse gas emissions in the agriculture and food sector may prevent the achievement of resilient agricultural systems in the medium to long-run as climate impacts worsen.
claimAdopting sustainable agricultural practices can help mitigate greenhouse gas emissions by sequestering carbon from the atmosphere.
claimResearch identified eight key outcomes for the energy sector, which include an expanded clean power supply, reduced greenhouse gas emissions, and improved energy governance.
measurementIn 2019, the energy sector was responsible for 34% of net global greenhouse gas emissions, according to the Intergovernmental Panel on Climate Change.
claimIn the energy sector, the outcome of reduced greenhouse gas (GHG) emissions is most strongly associated with investments in infrastructure, technology, and support for market linkages.
claimA mapping of interventions found relatively low incidences of efforts helping to avoid, minimize, or mitigate job losses and negative social outcomes resulting from climate change, and even fewer instances of interventions reporting reduced greenhouse gas emissions.
referenceThe goal of transitioning away from high-polluting agricultural practices is to reduce greenhouse gas emissions (specifically methane, nitrous oxide, and carbon dioxide) while creating resilient food systems that support population growth, adapt to climate change, and reduce biodiversity loss, according to the Green Climate Fund (2021a).
perspectiveAs governments, organizations, and corporations implement interventions to create more resilient food systems and lower greenhouse gas emissions, they must mitigate the resulting social and economic impacts on workers, suppliers, and consumers.
claimReduced greenhouse gas emissions in the energy sector are associated with five activities: mechanisms for coherence across programming and investments, incentives and standards, creating an enabling environment, institutional and market systems (public/private), and social dialogue and stakeholder engagement.
Measurement of diets that are healthy, environmentally sustainable ... frontiersin.org 14 facts
claimThe lack of standardized Life Cycle Assessment (LCA) methodologies and databases for marketplace foods causes variability across studies, leading to inconsistent recognition of life cycle stages and scales, which can underestimate greenhouse gas emissions and limit cross-study comparisons.
referenceMinx et al. (2021) compiled a comprehensive dataset for global, regional, and national greenhouse gas emissions by sector from 1970 to 2018, with an extension to 2019.
referenceStudies from Sweden have shown that consumers choosing diets with low greenhouse gas (GHG) emissions had higher intakes of added sugar compared to those choosing diets with high GHG emissions, because sugar is a plant-based product with low climate impact but known human health risks.
referenceSjörs et al. published 'Adherence to dietary recommendations for Swedish adults across categories of greenhouse gas emissions from food' in Public Health Nutrition in 2017.
referenceStrid et al. (2023) found that diets in Sweden with high versus low greenhouse gas (GHG) emissions resulted in different sex-specific health outcomes, likely due to differences in nutrient needs and food preferences between men and women.
referencePerignon, Masset, Ferrari, Barré, Vieux, Maillot, and colleagues conducted a modelling study to determine how low dietary greenhouse gas emissions can be reduced without impairing nutritional adequacy, affordability, and acceptability of the diet, published in Public Health Nutrition in 2016.
claimEnvironmental indicators that have existed the longest in the literature and have been the most frequently analyzed are climate-related outcomes, specifically GHG emissions (33.3%), land use (15.2%), and water use (13.6%).
referenceAleksandrowicz et al. (2016) conducted a systematic review on the impacts of dietary change on greenhouse gas emissions, land use, water use, and health.
claimShifting dietary patterns involves tradeoffs between policy goals, such as a shift to plant-based foods reducing greenhouse gas emissions while potentially resulting in higher water usage.
claimThe most common environment-related metrics used in food system modeling include greenhouse gas (GHG) emissions, water extraction, land use changes that release carbon to the atmosphere, and loss of biodiversity.
claimFood systems simultaneously generate significant greenhouse gas emissions contributing to climate change, underpin dietary patterns associated with a global escalation of non-communicable diseases, leave millions undernourished, and allow for the exploitation of food system workers.
claimMetrics used to assess the human and planetary impacts of dietary choices are currently centered on diet-related non-communicable disease states, greenhouse gas emissions, and natural resource depletion or pollution outcomes.
claimDietary choices and food production processes impact human health outcomes and planetary health through greenhouse gas emissions, natural resource depletion, and biodiversity loss.
claimResearchers use a wide range of metrics, datasets, and analytical techniques to explore how dietary choices and constraints drive greenhouse gas emissions, environmental degradation, health and disease outcomes, and the affordability of food baskets.
A Scoping Review of Indicators for Sustainable Healthy Diets frontiersin.org Jan 12, 2022 13 facts
claimThe most frequently used indicators related to greenhouse gases included greenhouse gas emissions (GHGEs), carbon footprint, and global warming potential.
referenceVellinga et al. (2019) studied the greenhouse gas emissions and blue water use of Dutch diets and their association with health.
claimEnvironmental indicators for diets are not always positively correlated, meaning that dietary changes that improve one indicator, such as greenhouse gas emissions, do not guarantee improvements in other indicators, such as water use.
claimA sustainability score derived from greenhouse gas emissions (GHGE), land use, and fossil fuels was justified by Van Dooren et al. (2014) because it incorporates the most important contributors to the environmental impacts of agricultural production.
claimThe ReCiPe or partial ReCiPe score is advantageous because it includes greenhouse gas emissions, land occupancy, fossil energy, and up to 15 other indicators, thereby avoiding the negative effects of assessing a single indicator in isolation, according to Kramer et al. (2017).
measurementGlobal food systems account for up to 29% of global greenhouse gas emissions (GHGE), according to Vermeulen et al. (2012).
referenceVan de Kamp et al. (2018) analyzed the greenhouse gas emissions of various diets that adhere to Dutch food-based dietary guidelines to determine if they are healthy and have reduced environmental impact.
claimGreenhouse gas emissions (GHGE) alone are considered insufficient to capture total environmental impact because other indicators, such as biodiversity loss and water use, represent important environmental impacts that must be accounted for.
referenceThe study 'Impact of current, National Dietary Guidelines and alternative diets on greenhouse gas emissions in Argentina' published in Food Policy in 2018 examines the relationship between dietary guidelines and environmental impact.
claimThe GHGE-Land Use score is considered a strong indicator for assessing the environmental impacts of dietary patterns because greenhouse gas emissions (GHGE) are a commonly accepted indicator and land use changes serve as a good proxy for biodiversity, according to van Dooren and Aiking (2016).
claimIndicators of environmental costs in diet assessment include cost benefits related to environmental improvements, the cost of total environmental impact of diets, and the cost of greenhouse gas emissions (GHGE), total energy, and total water embodied in food consumption.
referenceA literature review by Van Dooren et al. (2018a) examined 55 different indicators for assessing the environmental impacts of diets and concluded that greenhouse gas emissions (GHGE) and land use fulfilled most criteria necessary for addressing the environmental impact of diets.
claimGreenhouse gas emissions (GHGE) are often used as a proxy for other environmental impacts because they are frequently highly correlated with phenomena such as eutrophication, acidification, and land use.
How governments address climate change through carbon pricing ... nature.com Apr 15, 2025 11 facts
procedureThe author of the study uses the annual increase in the number of policies to reduce greenhouse gas emissions, based on the policies and measures database, as a proxy for recent changes in a government's policy portfolio.
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.
quoteCarbon pricing policies offer "an efficient way to mitigate climate change as it provides households and businesses with economic incentives for reducing greenhouse gas (GHG) emissions."
claimCarbon pricing policies serve as key instruments within national policy portfolios for reducing greenhouse gas emissions.
claimVoters who elect parties with a strong focus on economic growth cannot expect those parties to prioritize ambitious policies for reducing greenhouse gas emissions and mitigating climate change over their economic agenda.
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.
referenceJessica F. Green's article 'Does carbon pricing reduce emissions? A review of ex-post analyses' reviews existing ex-post studies to evaluate the effectiveness of carbon pricing in reducing greenhouse gas emissions.
claimCarbon pricing policies serve as key instruments within national policy portfolios for the purpose of reducing greenhouse gas emissions.
procedureThe author uses the annual increase in the number of policies to reduce greenhouse gas emissions, based on the policies and measures database, as a proxy for recent changes in a government's policy portfolio.
Nuclear Energy and Climate Change Mitigation everycrsreport.com Apr 1, 2025 8 facts
claimThe term "low-carbon" is commonly used to refer to energy sources such as wind, solar, and nuclear energy that have median life cycle greenhouse gas emissions of less than 200 grams of carbon dioxide equivalent (CO2e) per kilowatt-hour.
claimThe construction of uranium enrichment plants and the manufacturing of their equipment, such as centrifuges, contribute to greenhouse gas emissions.
claimNuclear fuel reprocessing could lower lifecycle greenhouse gas emissions by reducing the need for certain fuel cycle stages, but it also requires energy for construction and operation, as well as materials like concrete and steel.
claimGreenhouse gas emissions associated with nuclear fuel fabrication plants are determined by the energy sources used for plant operations, as well as the energy consumed during plant construction and equipment manufacturing.
claimResearchers utilize different metrics for estimating greenhouse gas emissions across various parts of the nuclear fuel cycle, which makes studies on the topic difficult to compare directly.
measurementA study found that greenhouse gas emissions from the in situ recovery (ISR) process were 38.0 kg CO2-equivalent per kg of U3O8 concentrate, which is significantly lower than the emissions from conventional mining.
claimGreenhouse gas (GHG) emissions from uranium enrichment plants are dependent on the source of the electricity used, with some plants, such as a large facility in France, utilizing mostly nuclear power.
referenceCRS Report R47561, titled 'Greenhouse Gas Emissions in the U.S. Electricity Sector: Background, Policies, and Projections' by Jonathan L. Ramseur, provides background and policy analysis regarding greenhouse gas emissions in the U.S. electricity sector.
Implications of the Western Diet for Agricultural Production, Health ... frontiersin.org 8 facts
claimGreenhouse gas emissions from agriculture represent only a small fraction of the total emissions generated by the entire food production chain, which also includes processing, transportation, and packaging.
claimProcessed food production generates high greenhouse gas emissions, accelerates land-use change to support agriculture and intensive livestock activities, and requires large amounts of water and agrochemicals.
claimCurrent dietary patterns cause an acceleration of greenhouse gas emissions, increased prevalence of obesity and diabetes, and an expansion of land-use change to satisfy the demand for highly processed food products and sugary drinks.
claimChanging the Western diet could substantially reduce the prevalence of diabetes, obesity, and greenhouse gas emissions (GHGe).
claimThe article "Implications of the Western Diet for Agricultural Production, Health and Climate Change" identifies "edible insect," "Western diet feeding," "agricultural production and development," "Greenhouse gases emissions," and "diabetes" as its keywords.
claimThe Western diet relies on agricultural production methods that negatively impact ecosystems, increase the use of fossil fuels, and boost greenhouse gas emissions.
claimThere is no proportional growth correlation between greenhouse gas emissions (GHGe) and health/production variables.
claimModern diet trends contribute to increased greenhouse gas emissions (GHGe) and rising temperatures, which in turn create a surge in the number of diabetes cases.
National Academies Publish New Report Reviewing Evidence for ... nationalacademies.org Sep 17, 2025 8 facts
claimThe National Academies of Sciences, Engineering, and Medicine published a report in September 2025 reviewing scientific evidence gathered since 2009 regarding the effects of greenhouse gas emissions on United States climate, health, and welfare.
claimTotal global greenhouse gas emissions have continued to increase despite successful efforts in many parts of the world to reduce emissions.
procedureThe committee that authored the National Academies report utilized widely available datasets on greenhouse gas emissions, the climate system, and human health; a broad range of peer-reviewed literature and scientific assessments; and more than 200 comments submitted in response to a request for information.
claimThe U.S. Environmental Protection Agency (EPA) issued a finding in 2009 stating that greenhouse gas emissions threaten public health and welfare.
claimThe U.S. Environmental Protection Agency recently issued a notice of proposed rulemaking indicating an intention to rescind its 2009 finding that greenhouse gas emissions threaten public health and welfare.
claimImproved scientific observations confirm that greenhouse gas emissions are warming Earth’s surface and changing Earth’s climate.
claimMultiple lines of scientific evidence show that greenhouse gas emissions from human activities are the primary driver of the observed long-term warming trend, as no known natural drivers like incoming solar radiation or volcanic emissions can explain the observed changes.
measurementTotal global greenhouse gas emissions continue to increase, although U.S. emissions of carbon dioxide have decreased slightly in recent years due to changes in energy production and consumption.
How the “Scientific Consensus” on Global Warming Affects ... heritage.org Oct 26, 2010 7 facts
claimIn July 2009, the United States House of Representatives passed a cap-and-trade bill aiming to reduce greenhouse gas emissions 83 percent below 2005 levels by 2050.
claimThe Environmental Protection Agency (EPA) has been working to regulate greenhouse gas emissions through administrative policy, acting as a substitute for the cap-and-trade legislation that Congress failed to pass.
claimThe EPA relied on the 2007 IPCC report and data from the NCDC to establish its 2009 endangerment finding regarding greenhouse gas emissions.
claimIn April 2009, the EPA issued an endangerment finding stating that current and future greenhouse gas emissions pose a serious threat to public health and safety.
claimIn 2007, 10 of the largest companies in the United States formed the United States Climate Action Partnership (USCAP) to urge the government to cut greenhouse gas emissions.
perspectiveThe Heritage Foundation recommends that the United States Congress should refrain from legislating to reduce greenhouse gas emissions, such as cap and trade, renewable electricity standards, or subsidies for clean energy, as long as scientific disputes remain.
claimThe Supreme Court ordered the EPA administrator to determine if greenhouse gas emissions were dangerous to human health and the environment and whether the scientific consensus on the effects of greenhouse gases was settled.
Carbon Pricing for Inclusive Prosperity: The Role of Public Support econfip.org 5 facts
claimCountries with greater public distrust of politicians and higher perceived corruption tend to have higher greenhouse gas emissions and weaker climate policies, according to cross-national studies by Klenert et al. (2018a) and Rafaty (2018).
measurementApproximately 20% of current global greenhouse gas emissions are covered by a carbon price, and most of these prices are below the $40-$80/tCO2 range.
claimGreenhouse gas emissions are externalities because the costs of emitting them are not reflected in the price paid by economic agents for polluting activities, leading to market failure.
claimCarbon emissions account for approximately three-quarters of all anthropogenic greenhouse gas emissions.
claimCarbon pricing aims to correct market failures where the real cost of greenhouse gas emissions to society is not reflected in market prices, thereby incentivizing producers to switch to lower-emission technologies and consumers to switch to less carbon-intensive goods.
Global perspectives on energy technology assessment and ... link.springer.com Oct 30, 2025 5 facts
claimRenewable energy technologies are considered a crucial strategy for mitigating climate change due to their potential to reduce greenhouse gas emissions and decrease dependence on fossil fuels.
claimWind energy is a promising alternative to fossil fuels with the potential to significantly reduce greenhouse gas emissions and become a leading renewable energy source.
claimHydrogen is considered a significant technological characteristic for energy storage because it produces zero carbon dioxide and greenhouse gas emissions.
claimPolicies that link the economic cost of greenhouse gas emissions to business and consumer activities promote mitigation initiatives by making carbon emissions costly.
referenceMiller T et al. explored the role of artificial intelligence in enhancing energy efficiency and reducing greenhouse gas emissions in transport systems in a 2024 article in Energies.
Effects of Human-Caused Greenhouse Gas Emissions on U.S. ... nationalacademies.org 5 facts
claimThe National Academies of Sciences, Engineering, and Medicine will publicly release the report from the fast-track study on the endangerment of public health and welfare by greenhouse gas emissions in September 2025.
claimThe scientific community has studied the effects of human-caused greenhouse gas emissions on the climate for over a century.
claimThe National Academies of Sciences, Engineering, and Medicine is conducting a fast-track study to review the latest scientific evidence on whether greenhouse gas emissions are reasonably anticipated to endanger public health and welfare in the United States.
claimThe fast-track study by the National Academies of Sciences, Engineering, and Medicine will develop conclusions that describe supporting evidence, the level of confidence, and areas of disagreement or unknowns regarding greenhouse gas emissions.
claimThe fast-track study by the National Academies of Sciences, Engineering, and Medicine will compare current scientific understanding of greenhouse gas emissions to the 2009 Environmental Protection Agency Endangerment Finding and explain any changes.
Greater than 99% consensus on human caused climate change in ... iopscience.iop.org Oct 19, 2021 4 facts
procedureThe authors of the paper assigned a rating of '2' (explicit endorsement without quantification) to all papers referencing future emissions scenarios in their abstracts, because these scenarios imply an evaluation of human roles in Greenhouse Gas (GHG) emissions and their subsequent impact on climate.
claimThe peer-reviewed scientific literature shows greater than 99% agreement that greenhouse gas emissions from human activities are the principal driver of modern climate change since the Industrial Revolution.
claimThe authors of the paper argue that papers rated as 'no position' (4a) should not be excluded from consensus calculations because they do not differ from the consensus view that Greenhouse Gas (GHG) emissions are the principal driver of climate change.
claimAlternative explanations for the dominant cause of modern, post-industrial climate change, other than rising greenhouse gas emissions from human activities, are exceedingly rare in the peer-reviewed scientific literature.
Scientific consensus on climate change - Wikipedia en.wikipedia.org 4 facts
claimNo scientific body of national or international standing disagrees with the view that global surface temperatures have increased due to human-induced greenhouse gas emissions.
claimThe dangers of extreme weather events will continue to increase unless there is a rapid decrease in greenhouse gas emissions to curb further warming.
perspectiveThe science academies of 17 countries concurred in 2001 that global temperatures are rising and will continue to rise due to human activities, and they stressed the importance of cutting greenhouse gas emissions, concluding that "Business as usual is no longer a viable option."
claimThe scientific consensus holds that it is unequivocal and incontrovertible that greenhouse gas emissions from human activities have caused warming on land, in oceans, and in the troposphere, with no natural processes providing an alternate explanation.
How do the indices based on the EAT-Lancet recommendations ... medrxiv.org May 14, 2024 4 facts
claimEAT-Lancet recommendations are associated with significant reductions in greenhouse gas emissions (GHGE) and land use.
measurementThe Agribalyse 3.1.1 database utilizes 14 specific metrics to assess environmental impact: greenhouse gas emissions (kg CO2 eq), exposure ionizing radiation (kg U235 eq), photochemical ozone formation (kg NMVOC eq), ozone depletion (Freon-11), emission of particulate matter (mortality due to particulate matter emissions), acidification (mol H+ eq), terrestrial eutrophication (mol N eq), freshwater eutrophication (kg P eq), marine eutrophication (kg N eq), freshwater ecotoxicity (CTUe), water use (m3 world eq), land use (loss of soil organic matter content in kg carbon deficit), fossils resource use (MJ), and metals and minerals resource use (kg Sb eq).
claimThe Agribalyse v.3.1.1 database has limitations, including the absence of soil carbon measurements in greenhouse gas emissions (GHGE) data, and a lack of information on biodiversity, phytosanitary product impact, and waste.
measurementFood systems contribute 34% of greenhouse gas emissions (GHGE) and 70% of freshwater consumption, while also contributing to resource depletion, pollution, land use, and biodiversity loss.
ESS Subtopic 6.2: Climate change – Causes and Impacts mrgscience.com 4 facts
measurementCountries with higher standards of living, such as Australia, Qatar, and the United States, have significantly higher per capita greenhouse gas emissions compared to developing countries.
claimClimate models utilize various scenarios to explore how different levels of greenhouse gas emissions, land use, population growth, and energy consumption may affect the Earth's future climate.
claimRCP 2.6 is a low-emissions scenario that assumes immediate, aggressive action to reduce greenhouse gas emissions, aiming to limit global warming to below 2°C.
claimCountries that are most vulnerable to climate change, such as Bangladesh, Pacific island nations, and parts of Sub-Saharan Africa, have contributed very little to global greenhouse gas emissions.
The Power of Change: Innovation for Development and Deployment ... nationalacademies.org 4 facts
claimA cap-and-trade program has the potential to efficiently reduce and price greenhouse gas emissions.
claimThe development, demonstration, and deployment of carbon capture and storage (CCS) technologies for coal and natural gas generators is critical for achieving deep reductions in greenhouse gas emissions, given the projected continued role of fossil fuels in the electric power generation mix.
claimPricing greenhouse gas (GHG) emissions provides the foundation for cost-effective reductions in GHG emissions and creates a sustainable market for renewable energy resources, according to a 2010 National Research Council report.
claimMost studies on renewable energy policies, including those by Fischer and Newell (2008), Fischer et al. (2013), Palmer and Burtraw (2005), Palmer et al. (2010), and Tuladhar et al. (2014), agree that carbon taxes or cap-and-trade systems reduce greenhouse gas emissions more cost-effectively than Renewable Portfolio Standards (RPSs).
An integrated climate-biodiversity framework to improve planning ... ecologyandsociety.org 4 facts
claimThe energy theme within the Integrated Climate-Biodiversity Framework (ICBF) focuses on reducing energy consumption and transitioning to renewable energy sources, which provides co-benefits such as decreased greenhouse gas emissions and improved air quality.
claimClimate action strategies that incentivize non-fossil fuel vehicles reduce greenhouse gas emissions and improve air quality, but they do not effectively reduce traffic volume or wildlife-vehicle collisions.
claimStrategies to reduce vehicle traffic and encourage active transportation can decrease vehicle-related greenhouse gas emissions while simultaneously producing biodiversity co-benefits associated with improved air quality.
claimTransitioning to biomass energy can reduce greenhouse gas emissions and facilitate carbon sequestration in bioenergy plantations, but it also conflicts with biodiversity objectives due to air pollutants from combustion and the replacement of high-quality habitats with monocultures.
Misleading U.S. Department of Energy climate report chooses bias ... science.feedback.org Aug 5, 2025 4 facts
perspectiveClimate scientists state that the U.S. Department of Energy (DOE) climate report is biased toward understating the consequences of climate change and the scientific confidence that human-driven greenhouse gas emissions are the primary driver of climate change.
perspectiveGonéri Le Cozannet argues that the U.S. Department of Energy report uses the question of uncertainties to instill doubt about the reality of sea-level rise, whereas the scientific community focuses uncertainties on greenhouse gas emissions and the speed of Antarctica’s response to warming.
claimRising greenhouse gas emissions contribute to an increased frequency and intensity of extreme weather events, which negatively impacts plant growth, crop yield, and increases the risk of extreme heat stress at crop anthesis.
quoteIt is an established fact that human-induced greenhouse gas emissions have led to an increased frequency and/or intensity of some weather and climate extremes since pre-industrial time, in particular for temperature extremes.
A critical review of industrial fiber hemp anatomy, agronomic ... bioresources.cnr.ncsu.edu 4 facts
claimResearchers have utilized hydrothermal carbonization to convert hemp fines into biochar, which can improve soil fertility and limit greenhouse gas emissions like N2O.
measurementHemp can generate 13 tonnes per hectare of biochar per year, which aids in carbon sequestration and reduces greenhouse gas emissions.
claimBioplastics are gaining popularity as an alternative to traditional petroleum-based plastics, which are associated with environmental issues such as greenhouse gas emissions and marine contamination.
measurementIn the United States, the building sector is responsible for 29% of total greenhouse gas emissions and over 40% of global CO2 emissions.
Western pattern diet - Wikipedia en.wikipedia.org 3 facts
claimWesternized diets contribute to increasing greenhouse gas emissions due to the large global supply chains involved in food production.
claimIn developed nations, the Western pattern diet can become the primary driver for greenhouse gas emissions.
claimLarge areas of land in Latin America and South-East Asia are dedicated to agriculture and forestry for export to other countries, which drives greenhouse gas emissions.
Energy Transition Literature - PSU Center for Energy Law and Policy celp.psu.edu May 20, 2024 3 facts
referenceMichel Cruciani published 'The Energy Transition in Sweden' in 2016, which analyzes the Swedish energy system, distinguishes it from other European models, and discusses key features including energy efficiency, renewable energy, and greenhouse gas emissions.
claimLocal people affected by renewable energy projects place more importance on the conservation of nature and human-environment interactions, whereas institutions are more concerned with opportunities to mitigate climate change, such as lessening greenhouse gas emissions.
referenceSpain’s National Energy and Climate Plan 2021-2030 (PNIEC) is a policy instrument that outlines goals for reducing greenhouse gas emissions, advancing renewable energy, and enhancing energy efficiency from 2021 to 2030.
A Consensus Proposal for Nutritional Indicators to Assess ... - Frontiers frontiersin.org 3 facts
referenceVieux, F., Darmon, N., Touazi, D., and Soler, L.G. authored the paper 'Greenhouse gas emissions of self-selected individual diets in France: changing the diet structure or consuming less?' published in Ecological Economics in 2012.
referenceVieux, F., Soler, L.G., Touazi, D., and Darmon, N. authored the paper 'High nutritional quality is not associated with low greenhouse gas emissions in self-selected diets of French adults,' published in the American Journal of Clinical Nutrition in 2013.
claimUsing FAOSTAT data to assess environmental sustainability can be misleading because livestock production has a greater role in greenhouse gas emissions than livestock consumption, and importing meat rather than producing it domestically can skew environmental impact calculations.
DOE's climate report is misleading, inaccurate, and ignores ... catf.us Sep 3, 2025 3 facts
claimThe U.S. Department of Energy released a report titled 'A Critical Review of Impacts of Greenhouse Gas Emissions on the U.S. Climate' on July 29, 2025, which evaluates peer-reviewed literature and government data regarding the climate impacts of greenhouse gas emissions.
perspectiveThe Clean Air Task Force (CATF) asserts that the U.S. Department of Energy's (DOE) draft report, "A Critical Review of Impacts of Greenhouse Gas Emissions on the U.S. Climate," is misleading, inaccurate, and ignores overwhelming evidence regarding the impact of greenhouse gas emissions on climate change.
quoteKathy Fallon stated: “The misrepresentation of carbon dioxide fertilization stands out as a central example of bias in the DOE draft report. It’s time to retire the tired ‘global greening’ argument that has been used to justify continued carbon pollution. The scientific literature has repeatedly addressed this issue and shows that ‘global greening’ also promotes nuisance plants that are bad for human health and agriculture, decreases the nutritional content of major crops, and releases even more greenhouse gas emissions from sensitive regions like the Arctic.”
Navigating market and political uncertainties in the age of energy ... brookings.edu Mar 11, 2025 2 facts
claimNatural gas is likely to remain a key component of the energy system, particularly in less developed countries, because it produces the fewest greenhouse gas emissions among fossil fuels when methane emissions are managed.
perspectiveU.S. President Donald Trump campaigned on a promise to reduce efforts to lower greenhouse gas emissions and combat climate change.
Greenhouse gases emissions and global climate change - PubMed pubmed.ncbi.nlm.nih.gov Jul 20, 2024 2 facts
perspectiveThe 2015 Paris Agreement provides a global framework for establishing goals to reduce greenhouse gas emissions by country, which the authors characterize as significantly more important than earlier, less effective initiatives.
claimGlobal efforts to reduce greenhouse gas emissions began with the 1997 Kyoto Protocol and culminated in the 2015 Paris Agreement.
Opportunities and Challenges of a Global Renewable Energy Goal worldfuturecouncil.org 2 facts
claimA global renewable energy target has the potential to address climate change, reduce greenhouse gas emissions, and foster sustainable development.
claimA global renewable energy target would reduce greenhouse gas emissions by replacing fossil fuels with renewable energy sources such as solar, wind, and geothermal.
Measuring Adherence to Sustainable Healthy Diets - R Discovery discovery.researcher.life Dec 26, 2022 2 facts
measurementFood systems are responsible for one-third of global greenhouse gas emissions.
claimEcologically, Sustainable Healthy Diets contribute to lower greenhouse gas emissions, reduced carbon and water footprints, and the reduction of food waste.
A Critical Disconnect: Relying on Nuclear Energy in ... energypolicy.columbia.edu Jul 6, 2023 2 facts
claimConcerns regarding greenhouse gas emissions, air pollution, and energy security are driving increased interest in nuclear power.
measurementGlobal greenhouse gas emissions increased in 2022 after a temporary decline during the 2020 Covid-19 pandemic.
Sustainability through business model innovation and climate ... nature.com Jan 20, 2025 2 facts
claimInvesting in renewable energy, energy efficiency, and sustainable infrastructure through green finance contributes to reducing greenhouse gas emissions, mitigating climate change impacts, and enhancing environmental quality.
claimClimate finance is a mechanism for supporting global climate change mitigation and adaptation efforts by facilitating financial flows that reduce greenhouse gas emissions and enhance resilience to climate impacts.
Advancing energy efficiency: innovative technologies and strategic ... oaepublish.com 2 facts
claimCarbon pricing schemes and environmental taxes motivate businesses to reduce greenhouse gas emissions, thereby supporting the transition to cleaner energy sources.
measurementThe energy sector is responsible for over 75% of global greenhouse gas emissions.
Comprehensive framework for smart residential demand side ... nature.com Mar 22, 2025 2 facts
claimMaximizing the local, decentralized utilization of electric vehicle resources contributes to the reduction of greenhouse gas emissions and the mitigation of climate change.
referenceThe article 'Vehicle-to-home charging can cut costs and greenhouse gas emissions across the USA' was published in Nature Energy in 2025.
How can nuclear combat climate change? world-nuclear.org May 1, 2024 2 facts
A critical review on techno-economic analysis of hybrid renewable ... link.springer.com Dec 6, 2023 2 facts
claimThe integration of flow power resources into the Compound Flow Power System (CFPS) improves renewable energy utilization, enhances power reliability, and reduces greenhouse gas emissions.
referenceLubis LI, Dincer I, Naterer GF, and Rosen MA analyzed the use of hydrogen power to reduce greenhouse gas emissions in Canada’s residential sector in 2009.
Reforming Iran's Energy Policy: Strategies for Sustainability ... jpia.princeton.edu Apr 22, 2025 2 facts
claimWithout decisive policy intervention, Iran's greenhouse gas emissions are projected to continue increasing, which would undermine the country's commitments under the Paris Agreement.
measurementThe power sector in Iran contributes 30 percent of the country's national greenhouse gas emissions.
Isn't there a lot of disagreement among climate scientists about ... climate.gov Feb 3, 2020 2 facts
quoteThe American Geophysical Union (AGU) issued a position statement, reaffirmed in November 2019, stating: "Human activities are changing Earth's climate, causing increasingly disruptive societal and ecological impacts. Such impacts are creating hardships and suffering now, and they will continue to do so into the future—in ways expected as well as potentially unforeseen. To limit these impacts, the world's nations have agreed to hold the increase in global average temperature to well below 2°C (3.6°F) above pre-industrial levels. To achieve this goal, global society must promptly reduce its greenhouse gas emissions."
quoteThe National Academies of Sciences, Engineering, and Medicine stated on their climate home page: "Scientists have known for some time, from multiple lines of evidence, that humans are changing Earth’s climate, primarily through greenhouse gas emissions," and that "Climate change is increasingly affecting people’s lives."
The Energy Department "Red Team" Critique of Greenhouse-Gas ... revkin.substack.com Jul 31, 2025 2 facts
claimThe authors of the Department of Energy report 'A critical review of impacts of greenhouse gas emissions on the U.S. climate' are known for challenging conclusions of the U.N. Intergovernmental Panel on Climate Change and U.S. National Climate Assessments.
claimSecretary of Energy Chris Wright commissioned a report titled 'A critical review of impacts of greenhouse gas emissions on the U.S. climate,' which the Department of Energy news release described as 'a critical assessment of the conventional narrative on climate change.'
Challenges of a Clean Energy Transition and Implications for ... economicstrategygroup.org 2 facts
claimPolicies that subsidize or mandate specific electricity generation sources, rather than taxing greenhouse gas emissions, have depressed wholesale electricity prices.
claimSeverin Borenstein of the Berkeley Haas School of Business and Ryan Kellogg of the University of Chicago Harris School of Public Policy argue that a successful transition to a reliable low-carbon energy system requires reducing greenhouse gas emissions while maintaining energy affordability, reliability, and resilience, and addressing historical socioeconomic and racial disparities in energy access and production harm.
Renewable Energy's Land Use Reckoning kleinmanenergy.upenn.edu Jun 3, 2025 1 fact
measurementForests currently remove approximately 10 percent of Massachusetts' annual greenhouse gas emissions.
Climate change: evidence and causes | Royal Society royalsociety.org 1 fact
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.
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.
Transitioning to renewable energy: Challenges and opportunities iee.psu.edu Jun 11, 2024 1 fact
perspectiveMany countries in the Global South argue that Western nations are coercing them into adopting renewable technologies, noting that they have not been the primary contributors to historical greenhouse gas emissions.
Dietary Guidelines and Quality - Principles of Nutritional Assessment nutritionalassessment.org 1 fact
claimCurrent global food systems contribute a significant share of global greenhouse gas emissions, land conversion, deforestation, and biodiversity loss, while agriculture accounts for the majority of global freshwater withdrawals, according to the FAO and WHO (2019).
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.
Editorial: Local, traditional and indigenous food systems in the 21st ... frontiersin.org 1 fact
claimModern food production systems are a major source of global greenhouse gas emissions and utilize natural resources unsustainably, while modern diets often lack essential micronutrients and food biodiversity.
Balancing land use for conservation, agriculture, and renewable ... nature.com Mar 7, 2026 1 fact
referencePopp et al. (2017) and Riahi et al. (2017) examined the implications of shared socioeconomic pathways for energy, land use, and greenhouse gas emissions.
Dozens of scientists push back on 'fundamentally ... - ABC News abcnews.com Sep 3, 2025 1 fact
claimIn 2009, the Environmental Protection Agency issued an 'Endangerment Finding' which determined that human-amplified climate change poses a threat to human health and safety, serving as the basis for regulating greenhouse gas emissions.
Measurement of diets that are healthy, environmentally sustainable ... pmc.ncbi.nlm.nih.gov 1 fact
claimResearchers utilize a wide range of metrics, datasets, and analytical techniques to explore the role of dietary choices and constraints in driving greenhouse gas emissions.
The geopolitics of energy transition, part 1: Six challenges for the ... ine.org.pl Oct 4, 2021 1 fact
claimMeeting the rapidly growing global demand for energy remains a higher strategic priority for national economies than domestic and international commitments to reduce greenhouse gas emissions.
Compendium Vol. 5 No. 1: The ecological role of native plants bio4climate.org 1 fact
claimKaren Holl and Pedro Brancalion (2020) argue that while well-planned tree-planting projects are important for ecological and human well-being, they are problematic when promoted as a simple, silver-bullet solution that overshadows more effective actions like reducing deforestation and greenhouse gas emissions.
Demand-Side Approaches for Rapid Load Growth | ACEEE aceee.org Feb 25, 2026 1 fact
claimMike Specian is the Utilities Manager at the American Council for an Energy-Efficient Economy (ACEEE), where his research focuses on energy efficiency policies and practices to mitigate greenhouse gas emissions and adapt to climate change.
Clean Energy Solutions Must Include Nuclear | ClearPath clearpath.org 1 fact
claimGermany has had to add generating stations that burn brown coal to replace missing nuclear capacity and balance its renewables, resulting in no reduction in greenhouse gas emissions for nine years.
More than 99.9% of studies agree: Humans caused climate change news.cornell.edu Oct 19, 2021 1 fact
quoteBenjamin Houlton, Dean of the College of Agriculture and Life Sciences at Cornell, stated: “It’s critical to acknowledge the principal role of greenhouse gas emissions so that we can rapidly mobilise new solutions since we are already witnessing in real-time the devastating impacts of climate-related disasters on businesses, people and the economy.”
Designing Carbon Pricing Policies Across the Globe link.springer.com 1 fact
claimEconomists and climate policy experts have not reached a consensus on whether a carbon tax or a cap-and-trade scheme is the preferable instrument for regulating greenhouse gas emissions.
What Role Does Nuclear Energy Play in the Race to Net Zero? earth.org Jul 19, 2023 1 fact
measurementTo have a 50% chance of hitting the 1.5C warming target, the Intergovernmental Panel on Climate Change (IPCC) estimates that global net-zero CO2 emissions must be reached around 2050, requiring deep cuts to greenhouse gas emissions of about 45% by 2030.
Transitioning Away from Fossil Fuels - CEBRI cebri.org Sep 22, 2025 1 fact
measurementGlobal greenhouse gas (GHG) emissions surpassed 57 GtCO2e in 2023, with the energy sector responsible for 68% of this total.
The potential land requirements and related land use change ... nature.com Feb 3, 2021 1 fact
claimLand cover change resulting from solar energy deployment implies environmental consequences, including greenhouse gas emissions and biodiversity loss.
Diet composition and staple-food dependence as structural ... researchsquare.com 1 fact
claimPlant-based diets have a lower environmental footprint than animal-based diets because their production requires fewer natural resources, such as land, water, and energy, and results in lower greenhouse gas (GHG) emissions.
Sustainable and healthy diet index (SHDI) unveils regional ... link.springer.com Sep 11, 2025 1 fact
claimIntensified food production systems and high consumption of animal-based foods are significant sources of global greenhouse gas emissions and endanger the environment.
Exploring the role of hydrogen in decarbonizing energy-intensive ... ui.adsabs.harvard.edu 1 fact
claimThe industrial sector is a major contributor to global greenhouse gas emissions due to its high energy demand.
How governments address climate change through carbon pricing ... discovery.researcher.life Apr 15, 2025 1 fact
claimEvidence indicates that carbon pricing has a limited impact on reducing greenhouse gas emissions.