Wildfires offset the increasing but spatially heterogeneous Arctic–boreal CO2 uptake

Anna-Maria Virkkala (), Brendan M. Rogers, Jennifer D. Watts, Kyle A. Arndt, Stefano Potter, Isabel Wargowsky, Edward A. G. Schuur, Craig R. See, Marguerite Mauritz, Julia Boike, M. Syndonia Bret-Harte, Eleanor J. Burke, Arden Burrell, Namyi Chae, Abhishek Chatterjee, Frederic Chevallier, Torben R. Christensen, Roisin Commane, Han Dolman, Colin W. Edgar, Bo Elberling, Craig A. Emmerton, Eugenie S. Euskirchen, Liang Feng, Mathias Göckede, Achim Grelle, Manuel Helbig, David Holl, Järvi Järveoja, Sergey V. Karsanaev, Hideki Kobayashi, Lars Kutzbach, Junjie Liu, Ingrid T. Luijkx, Efrén López-Blanco, Kyle Lunneberg, Ivan Mammarella, Maija E. Marushchak, Mikhail Mastepanov, Yojiro Matsuura, Trofim C. Maximov, Lutz Merbold, Gesa Meyer, Mats B. Nilsson, Yosuke Niwa, Walter Oechel, Paul I. Palmer, Sang-Jong Park, Frans-Jan W. Parmentier, Matthias Peichl, Wouter Peters, Roman Petrov, William Quinton, Christian Rödenbeck, Torsten Sachs, Christopher Schulze, Oliver Sonnentag, Vincent L. Louis, Eeva-Stiina Tuittila, Masahito Ueyama, Andrej Varlagin, Donatella Zona and Susan M. Natali
Additional contact information
Anna-Maria Virkkala: Woodwell Climate Research Center
Brendan M. Rogers: Woodwell Climate Research Center
Jennifer D. Watts: Woodwell Climate Research Center
Kyle A. Arndt: Woodwell Climate Research Center
Stefano Potter: Woodwell Climate Research Center
Isabel Wargowsky: Woodwell Climate Research Center
Edward A. G. Schuur: Northern Arizona University
Craig R. See: Northern Arizona University
Marguerite Mauritz: University of Texas at El Paso
Julia Boike: Alfred Wegener Institute Helmholtz Center for Polar and Marine Research
M. Syndonia Bret-Harte: University of Alaska Fairbanks
Eleanor J. Burke: Met Office Hadley Centre
Arden Burrell: Woodwell Climate Research Center
Namyi Chae: Korea University
Abhishek Chatterjee: California Institute of Technology
Frederic Chevallier: Université Paris-Saclay
Torben R. Christensen: Aarhus University
Roisin Commane: Columbia University
Han Dolman: Royal Netherlands Institute for Sea Research
Colin W. Edgar: University of Alaska Fairbanks
Bo Elberling: University of Copenhagen
Craig A. Emmerton: University of Alberta
Eugenie S. Euskirchen: University of Alaska Fairbanks
Liang Feng: University of Edinburgh
Mathias Göckede: Max Planck Institute for Biogeochemistry
Achim Grelle: Linnaeus University
Manuel Helbig: Dalhousie University
David Holl: Universität Hamburg
Järvi Järveoja: Swedish University of Agricultural Sciences
Sergey V. Karsanaev: Division of Federal Research Centre “The Yakut Scientific Centre of the Siberian Branch of the Russian Academy of Sciences”
Hideki Kobayashi: Japan Agency for Marine-Earth Science and Technology
Lars Kutzbach: Universität Hamburg
Junjie Liu: California Institute of Technology
Ingrid T. Luijkx: Wageningen University
Efrén López-Blanco: Aarhus University
Kyle Lunneberg: San Diego State University
Ivan Mammarella: University of Helsinki
Maija E. Marushchak: University of Eastern Finland
Mikhail Mastepanov: Aarhus University
Yojiro Matsuura: Tsukuba
Trofim C. Maximov: Division of Federal Research Centre “The Yakut Scientific Centre of the Siberian Branch of the Russian Academy of Sciences”
Lutz Merbold: Agroscope
Gesa Meyer: Université de Montréal
Mats B. Nilsson: Swedish University of Agricultural Sciences
Yosuke Niwa: National Institute for Environmental Studies
Walter Oechel: San Diego State University
Paul I. Palmer: University of Edinburgh
Sang-Jong Park: Korea Polar Research Institute
Frans-Jan W. Parmentier: University of Oslo
Matthias Peichl: Swedish University of Agricultural Sciences
Wouter Peters: Wageningen University
Roman Petrov: Division of Federal Research Centre “The Yakut Scientific Centre of the Siberian Branch of the Russian Academy of Sciences”
William Quinton: Wilfrid Laurier University
Christian Rödenbeck: Max Planck Institute for Biogeochemistry
Torsten Sachs: GFZ German Research Centre for Geosciences
Christopher Schulze: Université de Montréal
Oliver Sonnentag: Université de Montréal
Vincent L. Louis: University of Alberta
Eeva-Stiina Tuittila: University of Eastern Finland
Masahito Ueyama: Osaka Metropolitan University
Andrej Varlagin: Russian Academy of Sciences
Donatella Zona: San Diego State University
Susan M. Natali: Woodwell Climate Research Center

Nature Climate Change, 2025, vol. 15, issue 2, 188-195

Abstract: Abstract The Arctic–Boreal Zone is rapidly warming, impacting its large soil carbon stocks. Here we use a new compilation of terrestrial ecosystem CO2 fluxes, geospatial datasets and random forest models to show that although the Arctic–Boreal Zone was overall an increasing terrestrial CO2 sink from 2001 to 2020 (mean ± standard deviation in net ecosystem exchange, −548 ± 140 Tg C yr−1; trend, −14 Tg C yr−1; P

Date: 2025
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DOI: 10.1038/s41558-024-02234-5

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