EurekAlert! Climate Change - Latest News Releases

Latest News Releases

Updates every hour. Last Updated: 21-Sep-2025 09:11 ET (21-Sep-2025 13:11 GMT/UTC)

Unicellular cyanobacterium UCYN-B significantly contributes to global oceanic nitrogen fixation

Science China Press
Peer-Reviewed Publication

A study in National Science Review reports systematic observations of diazotroph abundance, community structure, and N₂ fixation rates in the western North Pacific. Using generalized additive models, the team characterized ecological niches of key cyanobacterial diazotrophs and quantified UCYN-B’s contribution to global N₂ fixation. The findings highlight UCYN-B’s pivotal role in marine N₂ fixation and provide new insights into ocean nitrogen cycle and productivity under climate change.

Journal: National Science Review

Inaugural editorial of Nitrogen Cycling

Biochar Editorial Office, Shenyang Agricultural University
Peer-Reviewed Publication

We are thrilled to announce the launch of Nitrogen Cycling – a new peer-reviewed journal dedicated to advancing research on nitrogen cycling and its critical role in sustainability, climate change, and food security. A multidisciplinary platform for high-quality research on N cycling, from microbes to mitigation.

Inaugural Editorial of Environmental and Biogeochemical Processes

Biochar Editorial Office, Shenyang Agricultural University
Peer-Reviewed Publication

We are thrilled to announce the launch of Environmental and Biogeochemical Processes, a new open-access journal dedicated to understanding the critical links between elemental cycles, climate change, and human health.

From the atmosphere to the abyss: Iron's role in Earth's climate history

University of Hawaii at Manoa
Peer-Reviewed Publication

A new study published by researchers at the University of Hawai‘i at Mānoa sheds light on the critical role of iron in Earth’s climate history, revealing how its sources in the South Pacific Ocean have shifted over the past 93 million years. This groundbreaking research, based on the analysis of deep-sea sediment cores, provides crucial insights into the interplay between iron, marine life, and atmospheric carbon dioxide levels.

Journal: Paleoceanography and Paleoclimatology
Funder: U.S. National Science Foundation

Scientists reveal how microbes collaborate to consume potent greenhouse gas

University of Southern California
Peer-Reviewed Publication

Scientists discovered deep-sea microbes using bio-electrical conductors to collaborate and consume methane, a potent greenhouse gas, before it escapes into the atmosphere. This is the first direct evidence of how these natural marine microbial partners [DJ1] transmit electricity between cells. Understanding how these electric microbial partnerships work could inspire new approaches to reduce greenhouse gas emissions.

Journal: Science Advances
Funder: U.S Department of Energy, Division of Chemical Sciences, Geosciences, and Biosciences, Office of Basic Energy Sciences, Air Force Office of Scientific Research, U.S Department of Energy, Office of Science, Office of Biological and Environmental Research, National Natural Science Foundation of China, Germany’s Excellence Initiative/Strategy through the Cluster of Excellence “The Ocean Floor-Earth’s Uncharted Interface”

Study finds wide variation in Amazon’s response to degradation and climate change

Yale University
Peer-Reviewed Publication

The research by Yale School of the Environment scientists highlights the need to reduce the “hammer” of human impact and deforestation rather than focus on an all-encompassing climatic tipping point.

Journal: Annual Review of Environment and Resources

Sea-level projections from the 1990s were spot on, Tulane study says

Tulane University
Peer-Reviewed Publication

Tulane researchers found that mid-1990s climate projections of sea-level rise were remarkably accurate when compared with 30 years of satellite data. The 1996 IPCC report predicted about 8 cm of rise, close to the 9 cm observed, though it underestimated ice-sheet contributions. The study highlights both the credibility of climate models and the importance of continued monitoring. Researchers stress the need for region-specific projections, especially for vulnerable coastal areas like south Louisiana, where sea-level rise varies widely.

Journal: Earth's Future

AI model maps building emissions to support fairer climate policies

National University of Singapore College of Design and Engineering
Peer-Reviewed Publication

Researchers at the College of Design and Engineering at the National University of Singapore (NUS) Urban Analytics Lab have developed an open-source AI model that maps carbon emissions from individual buildings using only publicly available data. Applied to more than 500,000 buildings across five global cities (Singapore, New York, Melbourne, Seattle and Washington DC) the model accurately identifies emission hotspots and reveals how a city’s planning history, building density, and income levels shape urban carbon footprints. The tool, which uses satellite imagery, street views, and other open geospatial data, aims to help cities design more targeted and equitable climate policies.

Journal: Nature Sustainability

Wildfires can raise local death rate by 67%, shows study on 2023 Hawaiʻi fires

Frontiers
Peer-Reviewed Publication

Wildfires are growing more intense and more frequent, thanks to the climate crisis. Now new research shows just how much they cost communities. Researchers investigating the fatalities associated with severe wildfires in August 2023 in Lāhainā, Maui, Hawaiʻi, found that 82 more local people died that month than would have been expected — a 67% increase over the usual death rate. During the week of 19 August, deaths were 367% higher than normal. The researchers call for a radical rethink of fire prevention and preparedness to prevent destructive fires and save lives in the future.

Journal: Frontiers in Climate

ACS Fall 2025 in Washington, DC: A grand stage for the NEW Community of Journals

Biochar Editorial Office, Shenyang Agricultural University
Meeting Announcement

The American Chemical Society (ACS) Fall 2025 meeting, held from August 17 to 21 in Washington, DC, has proven to be a monumental event in the scientific community. As the largest international academic event in the field of chemistry, it has drawn researchers, academics, and industry leaders from across the globe, all converging to discuss the latest advancements and challenges in chemistry and its multidisciplinary applications.

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