Climate Attribution

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Climate warming and elevated CO2 alter peatland soil carbon sources and stability

November 2023
Nicholas O. E. Ofiti, Michael W. I. Schmidt, Samuel Abiven, Paul J. Hanson, Colleen M. Iversen, Rachel M. Wilson, Joel E. Kostka, Guido L. B. Wiesenberg, Avni Malhotra
Nature Communications
This peer-reviewed study examines the impact of warming and elevated atmospheric CO2 on the molecular composition of soil organic carbon. The authors' results indicate that climate change may destabilize carbon storage in peatlands.Read More →

Acidification of Northeastern USA Lakes From Rising Anthropogenic-Sourced Atmospheric Carbon Dioxide and Its Effects on Aluminum Speciation

November 2023
Karen H. Johannesson, Jaxon Dii Horne, Anant Misra, Catherine Aliperta, Orpheus V. Meletis, Robert C. Santore, Christopher D. White, Georgia Mavrommati, David J. Burdige
Geophysical Research Letters
This peer-reviewed study assesses how rising atmospheric CO2 will impact terrestrial freshwaters such as lakes and streams, and finds that acidification of lakes in the northeastern USA could be of similar magnitude to ocean acidification.Read More →

Extratropical forests increasingly at risk due to lightning fires

November 2023
Thomas A. J. Janssen, Matthew W. Jones, Declan Finney, Guido R. van der Werf, Dave van Wees, Wenxuan Xu, Sander Veraverbeke
Nature Geoscience
In this peer-reviewed study, the authors examine fire ignition, and show that 77% of the burned area in extratropical forests stems from lightning. These areas are expected to experience between 11 and 31% more lightning per degree of warming.Read More →

Observational and model evidence together support wide-spread exposure to noncompensable heat under continued global warming

September 2023
Carter M. Powis, David Byrne, Zachary Zobel, Kelly N. Gassert, A.C. Lute, Christopher R. Schwalm
Science Advances
This peer-reviewed study performs a statistical extrapolation of temperature and humidity trends to calculate the annual likelihood of unsurvivable conditions (six hours of exposure to 35°C wet-bulb temperatures) in six different warming regimes.Read More →

Decreasing fire season precipitation increased recent western U.S. forest wildfire activity

August 2023
Zachary Holden, Alan Swanson, Charles Luce, W. Jolly, Marco Maneta, Jared Oyler, Dyer Warren, Russell Parsons, and David Affleck
Proceedings of the National Academy of Sciences
This peer-reviewed study uses climate modeling and statistical analysis of precipitation trends from 1979 to 2015 in the western United States to show that declines in summer precipitation contributed to the area of land burned by wildfires.Read More →