Anthropogenic Climate Change
Articles tagged with Anthropogenic Climate Change
A new study explains how carbon dioxide cools the upper atmosphere—and warms earth below
Researchers from Columbia University have developed a theory explaining how carbon dioxide cools the stratosphere, even as it warms Earth's surface and lower atmosphere. The study reveals that CO2 molecules interact with infrared light in a specific 'Goldilocks zone' that expands with increasing atmospheric CO2 levels.
How trees in urban areas are key to cooling down a warmer world
A study by Ohio State University found that certain tree species, such as red maple and northern catalpa, are more resilient to heat and water stress. Urban forests can provide natural cooling, reducing summer electricity usage, but require careful management and investment in irrigation systems.
Deforestation lowers threshold for Amazon degradation to below 2°C warming
Deforestation reduces Amazon's resilience to global warming, with around two-thirds of the forest at risk of degradation at 1.5-1.9°C of warming. Haltting deforestation and restoring forests can strengthen the Amazon's ability to withstand climate change.
Snow cover on Greek mountains has more than halved in four decades, study finds
Snow cover on Greek mountains has declined by 58% over the past four decades due to rising temperatures. The research found that warmer air causes more precipitation to fall as rain instead of snow at high altitudes.
‘Floating University’ sets sail again
A team of 14 West African Master's students, accompanied by experienced scientists, will conduct research at depths of up to 4,900 meters on the POLARSTERN research vessel. The 'Floating University' program aims to document long-term changes in the ocean and investigate marine biodiversity.
Deep-ocean heat has been marching closer to Antarctica, reveals new long-term study
A decades-long study of oceanographic data shows that warm water has expanded and shifted towards the Antarctic continental shelf, posing a threat to ice shelves. The Southern Ocean's circulation has changed, allowing excess heat from global warming to reach Antarctica's vulnerable ice sheets.
AMS science preview: AI forecast limits, unpredictable hurricanes, simplified heat index
New research from the American Meteorological Society explores AI forecasting limits, the impact of climate change on hurricane trends, and simplifies the heat index. The studies find that machine learning can outperform numerical physics-based models in certain conditions, but not universally.
Concordia research simplifies method for estimating climate impact of reflective surfaces
A new study by Hashem Akbari offers a simplified way to calculate the climate impact of reflective surfaces, allowing policy practitioners to view problems on a regional basis. Increasing albedo by 0.01 can offset about 1.8 to 2 kilograms of CO₂ per square metre globally, with some regions reaching up to 5 kilograms.
New Hampshire ski industry concerned about climate change
A recent UNH study reveals that New Hampshire ski industry professionals are increasingly concerned about climate change, with 85% expressing alarm or concern. The industry generates $278.8 million annually and supports over 10,000 jobs, highlighting the need for sustainable practices and advocacy.
Cow manure digesters really cut methane — unless they leak
A new study finds that dairy manure digesters are highly effective in reducing methane emissions from cow manure, with most systems performing well. However, occasional leaks of large magnitude offset the climate benefits, highlighting the need for thorough monitoring and verification.
Justice in achieving climate goals: Researchers at the University of Graz highlight the need for fair country shares in carbon dioxide removal
A new study highlights the importance of fair distribution of carbon dioxide removal rights among countries to halt global warming. The researchers found that unequal allocation can entrench inequality, shifting the climate burden onto future generations.
Extreme global climate outcomes are possible even at 2°C of warming
A new study by UFZ researchers warns that extreme global climate outcomes are possible even at moderate levels of global warming, such as 2°C. Sector-specific drivers like precipitation extremes and droughts can lead to severe impacts in vulnerable regions. The study highlights the need for ambitious climate mitigation measures to limi...
Climate change and the private solution trap
A new study found that wealthier nations tend to invest more in private solutions, exacerbating climate change. The research involved over 7,500 participants from 34 countries, who took part in a simulation on how economic resources are allocated to address climate change.
AMS Science Preview: Mississippi River, ocean carbon storage, gender and floods
Researchers investigated the Mississippi River's hydrological trends, ocean carbon storage, and gender dynamics in flood mortality. A study found that precipitation increases, but soil moisture decreases, while high-resolution models reveal stronger Southern Ocean carbon absorption. Additionally, data showed men are overrepresented in ...
New research outlines pathway to achieve high well-being and a safe climate without economic growth
A study by the Institute of Environmental Science and Technology of the Universitat Autònoma de Barcelona establishes the principles for modelling post-growth scenarios, pointing to the need for targeted demand-side measures and investments in low-carbon technologies. The research highlights the potential for post-growth to achieve pos...
DOE climate report ‘demonstrably incorrect’, say leading scientists in new analysis
Leading climate scientists, including Prof Benjamin Santer, reiterate the role of humans in global warming and warn against using an inaccurate government report to inform legal decisions. The report's claims are factually incorrect, contradicting decades of research on human-caused temperature changes.
Sustainability research overlooks key actors and actions in the face of the environmental crisis
A new study reveals major blind spots in global sustainable research, overlooking key strategies and sectors needed to address the environmental crisis. The study finds that sustainability researchers are neglecting potentially powerful actors, including civil society, and failing to assign clear responsibilities across sectors.
Unique analysis shows air-con heat relief significantly worsens climate change
A new study reveals that air-conditioning use will more than double by 2050, causing up to 8.5 GtCO₂‑eq per year in the worst-case scenario. This is equivalent to around 74–183 billion transatlantic return flights and adds 0.03°C to 0.07°C of global warming.
New computation method for climate extremes: Researchers at the University of Graz reveal tenfold increase of heat over Europe
Climate researchers developed a new method for computing hazards from extreme events, finding a tenfold increase in extreme heat over Europe. The study provides a basis for better quantifying damage to people, ecosystems, and infrastructure.
Indigenous Peoples and local communities in three continents report a drastic decline in bird body mass
A global study documents the collective ecological memory of Indigenous Peoples and local communities, revealing a consistent pattern of large-bodied bird species disappearing from local environments replaced by smaller-bodied species, with average bird mass declining from 1500g to 535g over eight decades.
AMS releases statement regarding the decision to rescind EPA’s 2009 Endangerment Finding
The American Meteorological Society (AMS) expresses deep concern over the repeal of the EPA's 2009 Endangerment Finding, which concluded that greenhouse gas emissions harm human health and well-being. AMS reaffirms key scientific conclusions on climate change, including its impacts on people and nature.
UK winters becoming wetter due to increasing concentrations of greenhouse gases in the atmosphere
A study by Newcastle University found that UK winters are becoming significantly wetter, with a 7% increase in rainfall per degree of global warming, driven by rising temperatures from anthropogenic warming. The experts warn that this trend will continue to worsen, increasing the risk of flooding and economic damages.
Scientists report increased rather than decreased soil carbon accumulation in boreal sphagnum peatlands under warming
Climate warming stimulates sphagnum growth, promotes iron protection, and inhibits microbial decomposition in boreal peatlands. This leads to increased soil carbon accumulation, potentially offsetting half of the decline in boreal forest carbon sink under future warming.
41 US states are warming, though each in a different way, according to a UC3M and UNIZAR study
A study by UC3M and UNIZAR reveals that most US states are warming in specific parts of their temperature distribution, even when the average warming is not statistically significant. Regional differences have varying impacts on agriculture, public health, and climate action.
Temperature of some cities could rise faster than expected under 2°C warming
Research from the University of East Anglia predicts that tropical cities will experience increased urban heat island effects under 2°C global warming. The study finds that up to 81% of medium-sized cities will warm more than surrounding rural areas, with some experiencing warming rates up to 100% higher.
Forest soils increasingly extract methane from atmosphere
Researchers at the University of Göttingen found that forest soils in south-western Germany absorb more methane as climate conditions become drier and warmer. This contradicts current international meta-analyses, highlighting the importance of long-term monitoring for assessing the effects of climate change.
Concordia study finds snow droughts in western and southern Canada could affect nearly all Canadians
A new method developed by Concordia researchers shows how small but widespread snowpack declines can ripple across Canada's water supply. The study found that usable snow water has declined sharply in areas of the Canadian Rockies, affecting a quarter of Canada's land mass and 86% of its population.
American Meteorological Society expands access to scholarly publications to support IPCC seventh assessment report
The American Meteorological Society has partnered with the Intergovernmental Panel on Climate Change (IPCC) to provide IPCC authors with access to peer-reviewed scientific publications. This collaboration ensures equitable access to critical climate science for researchers worldwide, particularly those from developing countries and fac...
Ventilation of the North Atlantic is weakening
The North Atlantic's ocean ventilation has weakened, with water masses aging significantly faster than 30 years ago. This decline in ventilation indicates a slower renewal of deep waters and reduced oxygen transport to depths, potentially impacting marine ecosystems.
Global warming and CO2 emissions 56 million years ago resulted in massive forest fires and soil erosion
A 56-million-year-old study found that global warming caused by CO2 emissions led to widespread forest fires and soil erosion. The research team discovered that even small changes in temperature can have significant impacts on ecosystems, leading to the release of more carbon into the atmosphere.
Scientists discover how fast the world’s deltas are sinking
New research reveals that land subsidence caused by humans is the main culprit behind delta sinking, posing increased flooding risk to 236 million people. The study identifies groundwater extraction as the dominant cause of subsidence, highlighting the need for urgent local interventions.
Ocean temperatures reached another record high in 2025
The Earth's ocean stored more heat in 2025 than in any year since modern measurements began, with a record-high increase of 23 Zetta Joules. The findings indicate stronger ocean warming trends since the 1990s and highlight the importance of reducing emissions to mitigate climate change.
How changing your diet could help save the world
A recent UBC study found that half of the global population needs to change their diets to prevent severe planetary warming. The study suggests that individuals can make simple dietary changes, such as eating only what they need and reducing beef consumption, to reduce food-related greenhouse gas emissions.
AMS Science Preview: Volcanic rain, dust storms, and unstable Antarctic air
Recent research reveals that volcanic eruptions can cause unpredictable weather patterns, including volcanic rain, dust storms, and unstable Antarctic air. The study also found that the Antarctic surface atmosphere has become less stable and more prone to gravity waves since the 1950s.
Global food systems driving twin crises of obesity and global heating
A comprehensive review highlights the urgent need to transform unsustainable food systems, which drive both obesity and environmental harms. The authors recommend subsidies for healthy foods, taxes on unhealthy products, and restrictions on aggressive marketing to address these twin crises.
Frontiers in Science Deep Dive webinar series: Global food systems driving twin crises of obesity and global heating
A major review in Frontiers in Science highlights how unsustainable food systems contribute to both health and climate crises. Experts examine evidence-based strategies to tackle industrial food systems promoting overconsumption and environmental pressures.
NAU team releases 13 years of detailed U.S. CO2 emissions data
A new study from Northern Arizona University provides 13 years of carbon dioxide emissions data for the United States, enabling businesses and cities to make informed environmental policy choices. The dataset is expected to help policymakers create trading markets and climate-friendly investments.
Storms in the Southern Ocean mitigates global warming
Research shows that intense storms in the Southern Ocean enable it to absorb more heat from the atmosphere. This helps regulate Earth's climate by reducing global warming. The study found that stronger storm activity generates lower surface temperatures across the ocean.
The Alps to lose a record number of glaciers in the next decade
The Alps are expected to reach a peak loss rate of 2,000-4,000 glaciers per year by 2033-2041, with only 110 glaciers remaining in Central Europe by 2100. Regions like the Rocky Mountains and Andes will also experience significant glacier losses.
Urea: The hidden fuel for ocean microbes
A new study reveals that ammonia-oxidizing archaea rely on urea as a nitrogen source, enabling them to flourish in open ocean waters. This discovery challenges existing understanding of nitrification rates and highlights the crucial role of urea in sustaining ocean productivity.
Polar bears may be adapting to survive warmer climates, says study
A new study found that rising temperatures are driving changes in polar bear DNA, which may help them adapt to increasingly challenging environments. The researchers discovered that genes related to heat-stress, aging, and metabolism are behaving differently in polar bears living in southeastern Greenland.
Reciprocity matters--people were more supportive of climate policies in their country if they believed other countries were making significant efforts themselves
A survey of 4,000 Chinese, Indian, Japanese, and US citizens found that people were more supportive of climate policies in their own country if they believed other countries were also taking action. The study's findings suggest that reciprocity plays a significant role in shaping public opinions on climate policy.
A new ‘hypertropical’ climate is emerging in the Amazon
The Amazon is shifting to a hotter, drier climate with more intense droughts, stressing trees and increasing mortality rates. By 2100, hot drought conditions could occur up to 150 days per year, affecting tree species that are vulnerable to heat stress.
Greenhouse gases to intensify extreme flooding in the Central Himalayas
Simulations predict a 22-26% and 37-43% increase in extreme floods on the Karnali River between 2020 and 2099, with high emissions expected to see a 73-84% increase. The study highlights the urgent need to reduce greenhouse gas emissions to mitigate flood hazards.
New approach narrows uncertainty in future warming and remaining carbon budget for 2 °C
A new study improves projection accuracy by combining climate model projections with observational data. The analysis reveals that many models overestimate global warming and refines estimates of the remaining carbon budget, narrowing the uncertainty range from 352-702 billion tons to 251-666 billion tons.
AMS 2026 Meeting showcases atmospheric science and the “human factor”
The 106th Annual Meeting of the American Meteorological Society will focus on the intersection of technology and human decision-making in weather, water, and climate sciences. The meeting will feature keynote presentations, Presidential Sessions, and named symposia highlighting key Earth science topics.
Flood risks in delta cities are increasing, study finds
Research shows that flooding in delta cities like Shanghai can expand by up to 80% and be much deeper by 2100 due to extreme climate events, sea-level rise and land subsidence. A major adaptation effort is required to raise defences and construct mobile flood barriers.
Heat and drought change what forests breathe out
Researchers found that warming temperatures may actually reduce nitrogen gas emissions from forest soils in dry conditions, contradicting earlier predictions. The study's findings suggest that moisture levels, not just heat, play a crucial role in determining the fate of nitrogen in forests.
Fossil fuels speed up shifts in Europe’s winter rainfall
A new study reveals that the burning of fossil fuels is accelerating winter rainfall changes in Northern and central Europe, including the UK, by more than two decades. This finding significantly upsets climate model projections, highlighting the urgent need for adaptation planning and infrastructure investment.
Southern ocean’s heat storage – a possible cause of future ‘heat burps’
A modelling study suggests that heat stored in the Southern Ocean could be released, causing a rapid warming of the atmosphere. The ocean acts as a large heat reservoir, mitigating atmospheric warming since the Industrial Revolution.
Búzios Scientific Statement: Providing evidence-based insights for COP30
The statement provides guidance as countries debate closing ambition gap at COP30 and small island states call for honoring 1.5°C goal. Research shows that limiting overshoot and returning below 1.5°C is still possible with quick emissions fall and clean-energy deployment acceleration.
Carbon-rich waters are becoming even more acidic as atmospheric CO2 levels rise
A new study reveals that ocean acidification is accelerating at a rate outpacing atmospheric CO2 levels, with the Northeastern Pacific Ocean experiencing rapid acidification. The research analyzed coral skeletons from the past century, showing that CO2 has been accumulating in North American waters faster than in the atmosphere.
Humanity travels an average of 78 minutes per day, regardless of living standards
According to a new study, humans travel for approximately 1.3 hours per day, regardless of their location or socioeconomic status. This constant travel time is influenced by psychological desires and practical limitations, resulting in a convergent range of travel times across different modes of transport.
Higher methane emissions from warmer lakes and reservoirs may exacerbate worst-case climate scenario
Climate change is expected to lead to a significant increase in methane emissions from lakes and reservoirs, with current emissions potentially doubling by the end of the century. This would contribute to faster climate change than currently predicted, highlighting the urgent need for reduced greenhouse gas emissions.
A novel climate biostress model and sentinel system seeks to track global climate impacts
Researchers developed a Climate BioStress model to detect biological signatures of climate change. A Sentinel System (CBS3) is proposed to track climate stress indicators across biological, built, and social infrastructures.
Tie climate action to protecting a way of life to increase motivation, study says
A global study of participants from six countries found that addressing psychological distance and the threat to one's way of life are most effective interventions in boosting motivation for environmental efforts. The study suggests that making climate action a patriotic duty can increase willingness to exert physical effort.
How algae help corals bounce back after bleaching
Scientists at UC Riverside are using advanced technology to understand how corals regain life-giving algae after suffering from heat stress. By studying the cellular and genetic mechanisms of algae reestablishment, researchers aim to develop practical tools to help reefs survive ocean warming.
Conflict, climate change and public health
The Lancet Countdown report links climate change to violence and community health, emphasizing the need for social and economic changes to prevent conflict. Strengthening food systems and ensuring emergency responses can reduce grievances and protect healthcare workers.
Climate report: Earth on dangerous path but rapid action can avert the worst outcomes
A new report warns that the planet is on a dangerous path and that rapid action can avert the worst outcomes of climate change. The report highlights the need for effective climate mitigation and adaptation strategies, including reducing fossil fuel consumption and promoting renewable energy sources.