Climate Attribution

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Synthesis Report of the IPCC Sixth Assessment Report

March 2023
Intergovernmental Panel on Climate Change
Intergovernmental Panel on Climate Change
This Synthesis Report summarizes the state of knowledge of climate change, its widespread impacts and risks, and climate change mitigation and adaptation, based on the peer-reviewed scientific, technical and socio-economic literature since 2014.Read More →

Record-high CO2 emissions from boreal fires in 2021

March 2023
Bo Zheng, Philippe Ciais, Frederic Chevallier, Hui Yang, Josep G. Canadell, Yang Chen, Ivar R. Van Der Velde, Ilse Aben, Emilio Chuvieco, Steven J. Davis, Merritt Deeter, Chaopeng Hong, Yawen Kong, Haiyan Li, Hui Li, Xin Lin, Kebin He, Qiang Zhang
Science
This peer-reviewed study finds that an increase in extreme boreal fires in 2021 resulted in increased CO2 emissions. Increasing numbers of extreme boreal fires and stronger climate–fire feedbacks challenge climate mitigation efforts.Read More →

Large increases in methane emissions expected from North America’s largest wetland complex

March 2023
Sheel Bansal, Max Post Van Der Burg, Rachel R. Fern, John W. Jones, Rachel Lo, Owen P. McKenna, Brian A. Tangen, Zhen Zhang, Robert A. Gleason
Science Advances
This peer-reviewed study examines natural methane emissions from the Prairie Pothole Region, North America's largest wetland. These emissions are predicted to increase by 2- or 3-fold by 2100 under moderate or severe warming scenarios, respectively.Read More →

National contributions to climate change due to historical emissions of carbon dioxide, methane, and nitrous oxide since 1850

March 2023
Matthew W. Jones, Glen P. Peters, Thomas Gasser, Robbie M. Andrew, Clemens Schwingshackl, Johannes Gütschow, Richard A. Houghton, Pierre Friedlingstein, Julia Pongratz, Corinne Le Quéré
Scientific Data (Nature)
This study introduces a dataset detailing the national contributions to global warming caused by CO2, CH4, and N2O emissions from 1851 to 2021. It emphasizes the importance of national accountability offers insights into cumulative impacts. Read More →

Emissions of Carbon Dioxide in the Transportation Sector

December 2022
Congressional Budget Office
This report examines the trends and sources of CO2 emissions within the U.S. transportation sector, the largest emitter of CO2 in the country. It provides analyses on factors influencing these emissions and the policy and economic implications. Read More →

South Asian black carbon is threatening the water sustainability of the Asian Water Tower

November 2022
Junhua Yang, Shichang Kang, Deliang Chen, Lin Zhao, Zhenming Ji, Keqin Duan, Haijun Deng, Lekhendra Tripathee, Wentao Du, Mukesh Rai, Fangping Yan, Yuan Li, Robert R. Gillies
Nature Communications
This peer-reviewed study examines the effect of South Asian black carbon emissions on glacial melt in the Tibetan plateau, and indirect effects of this melt on the supply of water in densely-populated regions of South Asia.Read More →

Seasonal increase of methane emissions linked to warming in Siberian tundra

October 2022
Norman Rößger, Torsten Sachs, Christian Wille, Julia Boike, Lars Kutzbach
Nature Climate Change
This paper assesses methane emissions from the North Siberian Lena River Delta, providing the first observational evidence of an increasing trend of early summer methane emissions from tundra wetlands linked to atmospheric warming.Read More →