Research on measuring and modeling the climate. Covers climate extremes, carbon sequestration, monitoring methods, and urban heat exposure.
The University of Michigan's Center for Sustainable Systems has released its 2025 collection of factsheets, covering topics like energy, water, climate change, and transportation. The new edition includes two all-new sheets on artificial intelligence and the Great Lakes, with information gathered from over 1,270 reputable sources.
Researchers measured gas emissions from 96 US wastewater plants, finding they produce 1.9-2.4 times more nitrous oxide and methane than previously thought. This means taking steps to improve a small number of plants can have a significant impact on overall pollution.
A new three-year agreement between the Pacific Marine Science Alliance Society and MEOPAR aims to strengthen national ocean research collaboration across Canada's coasts. The partnership will focus on addressing key challenges such as climate resilience, marine hazard prediction, and sustainable resource use.
A study has found that high-latitude phytoplankton communities responded to a pre-PETM warming event, highlighting the importance of examining background intervals in determining ecosystem change. The results suggest even small environmental changes can have dramatic impacts on marine ecosystems.
New research shows that despite global GDP doubling since 2000, billions of people still lack access to essentials like food, housing, and healthcare. The study reveals that wealthy countries drive most of the ecological overshoot while poorer countries bear the brunt of deprivation.
A new survey reveals near-universal acceptance of human-caused climate change and high levels of concern among small-island residents. They support an 'all hands on deck' approach to addressing the climate crisis, with a focus on historic and current major sources of pollution.
The Swiss Alps have experienced its fourth greatest shrinkage of glacier ice since 2003, with over 1,000 small glaciers disappearing since 2015. The rapid melting was driven by low snowfall and record-breaking heatwaves in June 2025.
The new Python-based framework simplifies climate dynamics, allowing students and researchers to explore cutting-edge experiments. It features adjustable atmospheric settings and can simulate real-world influences, making it suitable for classroom exercises and advanced research.
A new study suggests that the Earth's carbon cycle can overcorrect and plunge the planet into an ice age if greenhouse gas emissions continue to rise. The researchers found that in a warmer world with enhanced algae growth, the oceans lose oxygen, leading to a feedback loop that consumes more carbon.
A new strategy to increase low-emission food consumption has been found effective in controlled choice experiments with 3,000 participants. The 'nudge by proxy' approach highlights consumer motivations rather than environmental impacts, significantly outperforming traditional carbon footprint labelling.
Hanqin Tian, Boston College Professor and Director of the Center for Earth System Science and Global Sustainability, has been honored with the 2025 AGU Bert Bolin Award. His research has fundamentally advanced understanding of biogeochemical cycles and their roles in the climate system.
A new study reveals that global warming is accelerating the risk of multi-year droughts leading to extreme water scarcity. The frequency of Day Zero Droughts will increase sharply over the coming decades, affecting 750 million people globally by the end of this century.
Research finds fish diversity declining in arid regions of US and Australia due to reduced water availability. Climate change is also affecting these ecosystems, but the study's findings suggest multiple stressors are at play.
Researchers used multiple agronomic models to examine the effects of climate-smart agricultural practices on carbon sequestration and greenhouse gas emissions. The study found positive effects in both studied locations under a baseline scenario, but negative effects in a worst-case scenario.
A 30-year study reveals East Antarctica's interior is warming at a rate of 0.45-0.72°C per decade, faster than global average, driven by changes in the Southern Indian Ocean. This warming process may underestimate future Antarctic ice loss predictions.
A study by Utrecht University researchers found that previous fairness and ambition assessments were biased, rewarding high emitters at the expense of vulnerable ones. The proposed method avoids delaying emission reduction obligations and calculates immediate ambition gaps that can be filled by climate measures and international finance.
A new study estimates that safe underground carbon storage can reduce warming by 0.7°C, significantly lower than previous estimates of 6°C. The study highlights the need for responsible management of this limited resource to achieve long-term climate goals.
Researchers found that wildfire chars can suppress methane production by supporting the growth of bacteria that outcompete methanogens. This natural process could have important implications for mitigating greenhouse gases and climate change.
Research from the University of Utah and Virginia Tech reveals that seasonal shifts in rainfall and snowfall patterns are exacerbating glacier melting across the region. Glaciers in Central Himalaya, Western Himalaya, and Eastern Himalaya are especially vulnerable to accelerated ice loss and water availability threats.
Researchers found that local climate heating caused by tropical deforestation is associated with 28,000 heat-related deaths each year, affecting over 48 million people in Indonesia, DRC, and Brazil. Deforestation eliminates trees that regulate the climate, leading to increased temperatures and greenhouse gas concentrations.
A new method reconstructs carbon dioxide levels and photosynthesis from fossilized tooth enamel, shedding light on the climate of the Mesozoic era. The analysis found that atmospheric CO2 levels were four times higher in the late Jurassic period and three times higher in the late Cretaceous period than they are today.
A new study published in Earth's Future journal reveals that sea-level projections from the 1990s were remarkably accurate, with global sea-level rise averaging about one eighth of an inch per year. The researchers compared these projections with recent satellite measurements and found a remarkable match.
The State of the Climate report reveals record-high greenhouse gas concentrations, with CO2 levels reaching 422.8 parts per million, a 52% increase from pre-industrial levels. Global temperatures also reached a new high, with annual growth increasing to 2.4 ppm yr−1.
Researchers from Heidelberg University and the University of Bern reconstructed Holocene circulation patterns using geochemical analyses of marine sediments. The Atlantic Meridional Overturning Circulation remained stable for long periods but weakened between 9,200 and 8,000 years ago, coinciding with meltwater pulses.
Researchers have developed a novel way to reach the unexplored mesosphere using lightweight flying structures that can float using sunlight. The devices, which were built at Harvard and other institutions, levitated in low-pressure conditions and demonstrated potential for climate sensing and exploration.
Fossilized dinosaur teeth contain oxygen isotopes that indicate high carbon dioxide levels in the atmosphere during the Mesozoic Era, which was four to three times higher than today. This data suggests dynamic climates with double primary plant production, contributing to their extinction.
A new study led by Harvard T.H. Chan School of Public Health found that increasing solar power generation in the US by 15% could lead to significant cuts in CO2 emissions. The researchers pinpointed regions where clean energy investments return the greatest climate dividends and demonstrated the value of coordinated clean energy efforts.
Researchers at Göttingen University developed a method to reconstruct the early Earth's atmosphere using fossilized micrometeorites. The study found that intact micrometeorites can preserve reliable traces of oxygen isotopes over millions of years.
A large region of unusually hot rock deep beneath the Appalachian Mountains in the United States could be linked to Greenland and North America splitting apart 80 million years ago. The 'mantle wave' theory suggests that hot, dense rock slowly peels away from the base of tectonic plates after continents break apart.
Researchers developed a new machine learning method to improve climate model projections, making them more accurate at both global and regional levels. The new tool addressed challenges in capturing observed patterns in compound extreme events, leading to improved projections of these events.
A new study attributes the extreme nature of the floods to climate change, linking it to intensified rainfall and warning that storms will become even more intense as the planet warms. The research calls for building resilience in a warming world through advanced early warning systems and community-based flood warnings.
Researchers estimate that lightning kills around 320 million trees each year, resulting in significant biomass loss. This equates to an annual emission of 0.77-1.09 billion tons of CO₂, comparable to the emissions from wildfires.
A team of scientists has developed a high-resolution climate model that simulates global climate change at 9 km atmospheric and 4-25 km oceanic scales. The model demonstrates superior performance compared to lower-resolution models, providing detailed regional insights into future climate conditions.
A study predicts that Barcelona will experience extreme and dry heat periods with temperature increases of up to 4ºC and a general reduction in relative humidity. The research forecasts an increase in average maximum temperatures of 4ºC and average minimum temperatures of 3.5ºC if greenhouse gas emissions are not drastically reduced.
A study found that declining aerosols are up to 2.5 times more influential than greenhouse gases in driving changes in heatwave occurrence in populated areas. Higher levels of aerosols suppressed heatwave exposure by reflecting the sun's rays, but this trend is now reversing due to clean air policies.
A recent study from the University of Texas at Austin finds that climate change may be disrupting the natural Pacific Decadal Oscillation cycle, which brings needed rain to the region. This could lead to prolonged droughts in the southwest U.S., affecting water resources like the Colorado River.
Researchers at Notre Dame's School of Architecture and the Lucy Family Institute for Data & Society developed EcoSphere, an AI-powered platform that visualizes embodied carbon emissions. The tool helps city planners identify strategies to reduce carbon emissions through renovation and extended building life.
A new study by researchers at the University of Kansas finds that cities with proactive, learning-oriented and risk-tolerant governance styles are more likely to implement ambitious climate resilience strategies. These cities are better positioned to protect their communities and lead meaningful change in an era of mounting climate risks.
Researchers solved a long-standing climate mystery by combining geological evidence with climate model simulations. They found that speleothem δ18O records reflect precipitation signals from multiple seasons, not just summer monsoon season.
A new study finds that climate change and aerosols have led to lower precipitation in the Southwest, making drought inevitable. The research predicts continued drought conditions as the planet warms.
The Three Gorges Region of the Yangtze River experienced a new historic record for annual mean temperature in 2024, with spring and autumn recording their highest temperatures since 1961. The region also saw an acceleration of climate warming trends, with more frequent extreme high-temperature events.
Researchers at the University of Copenhagen analyzed old aerial photos to better understand mechanisms behind Antarctic ice shelf collapse. The study reveals that rising sea temperatures are a primary driver of collapse, contradicting previous assumptions.
Researchers used daily high-resolution images to create 3D elevation models of three glaciers: La Perouse Glacier in Alaska, Viedma Glacier in Argentina, and Skamri Glacier in Central Asia. The analysis revealed consistent thinning in the Viedma and La Perouse Glaciers but a small net gain of ice in the Skamri Glacier.
Researchers found several volatile phases in the polar jet stream over the past 125 years that predate significant climate change effects. The study suggests that natural fluctuations may be driving recent erratic behavior of the jet stream, rather than climate change.
Researchers analyzed leaf waxes and found no significant drying trend in northern Africa between 3.5 and 2.5 million years ago. This challenges previous interpretations of the climate history of the region. The study suggests that dust deposits may be attributed to changes in wind patterns rather than rainfall.
A recent study recommends improving climate adaptation programs by enhancing capacity building efforts within governments, economic sectors, and communities. This approach aims to create enabling environments for finance to be impactful, focusing on regional circumstances and stakeholder involvement.
A study by University of California, Riverside researchers finds that the Atlantic Meridional Overturning Circulation's slowdown is responsible for the persistent cold water anomaly south of Greenland. This weakening circulation leads to cooler surface waters and fresher salinity, impacting weather patterns across Europe.
Researchers found that eukaryotes could survive in shallow pools of water atop ice sheets, similar to modern-day meltwater ponds in Antarctica. These environments supported diverse communities of early complex life, influenced by salinity levels.
The study found that the remaining carbon budget for 1.5°C is 130 billion tonnes of CO2, which would be depleted in less than three years at current emission rates. This would lead to catastrophic climate impacts and exceed the carbon budget for 1.6°C or 1.7°C within nine years.
A study by Florida Atlantic University reveals that climate shifts starting around 500 A.D. led to shorter lives and faster growth in bald cypress trees, which may have made them more vulnerable to stress. The research provides a powerful lens into how widespread environmental changes can be.
Researchers uncover valuable insights into past climate scenarios and marine ecosystems through ancient sediment cores. The study highlights the need for more data to improve future climate models and transform our understanding of Earth's complex life systems.
The Global Declaration of Commitment for Scientific Ocean Drilling aims to promote global cooperation and collaboration in ocean science. The declaration sets out core principles for transparent access to data and samples, inclusive participation, environmental responsibility, and alignment with the UN SDGs.
A new study from the University of Michigan reveals that heat waves and cold spells on the Great Lakes have increased by more than 100% since 1998, coinciding with the strongest El Niño event. This trend has significant implications for the region's weather, economy, and ecosystems.
A study found that a record-smashing North Atlantic marine heatwave in 2023 was caused by record-breaking weak winds combined with increased solar radiation. The warming waters radiated heat back into the atmosphere, triggering deadly heatwaves across Europe and intensifying hurricanes.
A new University of Washington study projects that increasing boreal fires in Canada and Siberia will slow global warming by 12% globally and 38% in the Arctic. The fires reduce sea ice loss and cooler winter temperatures, despite their own warming effects.
Researchers at the University of Graz have developed a new benchmark timeseries that tracks global surface air temperature change from 1850 to 2034. This enables reliable monitoring of the Paris climate goals, which are set to be exceeded by 2028. The study proposes a four-classes assessment scale to gauge compliance with the agreement.
A study by Göttingen University researchers combined satellite data with manual measurements to better understand forest soil moisture. The findings show that soil moisture is strongly influenced by weather and season, not exact location, and highlight the importance of monitoring soil moisture over time for effective forest management.
A recent study using SWOT satellite data has revealed the existence of powerful submesoscale eddies in the ocean, which play a significant role in shaping the climate system. These smaller currents carry surprisingly large amounts of energy and influence marine food webs, weather patterns, and events like El Niño and La Niña.
A new study published in Science finds that strong climate policy can preserve twice as much ice as current warming trajectories, even if temperatures stabilized today. At a 1.5°C temperature increase, 53% of global glacier mass could be preserved, alleviating hazards like flooding and freshwater deficiency.
A new study finds that limiting global warming to 1.5°C could save twice as much glacier ice as current policies, which project an average of +2.7°C. This would mitigate 10cm of sea-level rise and preserve up to 39% of global glacier mass.