Details

Autor(en) / Beteiligte

• Zheng, Bo
• Ciais, Philippe
• Chevallier, Frederic
• Yang, Hui
• Canadell, Josep G
• Chen, Yang
• van der Velde, Ivar R
• Aben, Ilse
• Chuvieco, Emilio
• Davis, Steven J
• Deeter, Merritt
• Hong, Chaopeng
• Kong, Yawen
• Li, Haiyan
• Li, Hui
• Lin, Xin
• He, Kebin
• Zhang, Qiang

Titel

Record-high CO 2 emissions from boreal fires in 2021

Ist Teil von

• Science (American Association for the Advancement of Science), 2023-03, Vol.379 (6635), p.912-917

Ort / Verlag

United States: American Association for the Advancement of Science (AAAS)

Erscheinungsjahr

2023

Link zum Volltext

Quelle

Science Online_科学在线

Beschreibungen/Notizen

• Extreme wildfires are becoming more common and increasingly affecting Earth's climate. Wildfires in boreal forests have attracted much less attention than those in tropical forests, although boreal forests are one of the most extensive biomes on Earth and are experiencing the fastest warming. We used a satellite-based atmospheric inversion system to monitor fire emissions in boreal forests. Wildfires are rapidly expanding into boreal forests with emerging warmer and drier fire seasons. Boreal fires, typically accounting for 10% of global fire carbon dioxide emissions, contributed 23% (0.48 billion metric tons of carbon) in 2021, by far the highest fraction since 2000. 2021 was an abnormal year because North American and Eurasian boreal forests synchronously experienced their greatest water deficit. Increasing numbers of extreme boreal fires and stronger climate-fire feedbacks challenge climate mitigation efforts.