Record-high CO 2 emissions from boreal fires in 2021.
- Resource Type
- Academic Journal
- Authors
- Zheng B; Shenzhen Key Laboratory of Ecological Remediation and Carbon Sequestration, Institute of Environment and Ecology, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, China.; State Environmental Protection Key Laboratory of Sources and Control of Air Pollution Complex, Beijing 100084, China.; Ciais P; Shenzhen Key Laboratory of Ecological Remediation and Carbon Sequestration, Institute of Environment and Ecology, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, China.; Laboratoire des Sciences du Climat et de l'Environnement, LSCE/IPSL, CEA-CNRS-UVSQ, Université Paris-Saclay, Gif-sur-Yvette, France.; The Cyprus Institute, Nicosia 2121, Cyprus.; Chevallier F; Laboratoire des Sciences du Climat et de l'Environnement, LSCE/IPSL, CEA-CNRS-UVSQ, Université Paris-Saclay, Gif-sur-Yvette, France.; Yang H; Department of Biogeochemical Integration, Max Planck Institute for Biogeochemistry, 07745 Jena, Germany.; Canadell JG; CSIRO Environment, Canberra, ACT 2601, Australia.; Chen Y; Department of Earth System Science, University of California, Irvine, Irvine, CA 92697, USA.; van der Velde IR; SRON Netherlands Institute for Space Research, Utrecht, Netherlands.; Department of Earth Sciences, Vrije Universiteit, Amsterdam, Netherlands.; Aben I; SRON Netherlands Institute for Space Research, Utrecht, Netherlands.; Department of Physics and Astronomy, Vrije Universiteit, Amsterdam, Netherlands.; Chuvieco E; Universidad de Alcalá, Environmental Remote Sensing Research Group, Department of Geology, Geography and the Environment, 28801 Alcalá de Henares, Spain.; Davis SJ; Department of Earth System Science, University of California, Irvine, Irvine, CA 92697, USA.; Department of Civil and Environmental Engineering, University of California, Irvine, Irvine, CA 92697, USA.; Deeter M; Atmospheric Chemistry Observations and Modeling Laboratory, National Center for Atmospheric Research, Boulder, CO 80307 USA.; Hong C; Shenzhen Key Laboratory of Ecological Remediation and Carbon Sequestration, Institute of Environment and Ecology, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, China.; State Environmental Protection Key Laboratory of Sources and Control of Air Pollution Complex, Beijing 100084, China.; Kong Y; Ministry of Education Key Laboratory for Earth System Modeling, Department of Earth System Science, Tsinghua University, Beijing 100084, China.; Li H; School of Civil and Environmental Engineering, Harbin Institute of Technology, Shenzhen 518055, China.; Li H; Shenzhen Key Laboratory of Ecological Remediation and Carbon Sequestration, Institute of Environment and Ecology, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, China.; Lin X; Laboratoire des Sciences du Climat et de l'Environnement, LSCE/IPSL, CEA-CNRS-UVSQ, Université Paris-Saclay, Gif-sur-Yvette, France.; He K; State Environmental Protection Key Laboratory of Sources and Control of Air Pollution Complex, Beijing 100084, China.; State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing 100084, China.; Zhang Q; Ministry of Education Key Laboratory for Earth System Modeling, Department of Earth System Science, Tsinghua University, Beijing 100084, China.
- Source
- Publisher: American Association for the Advancement of Science Country of Publication: United States NLM ID: 0404511 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1095-9203 (Electronic) Linking ISSN: 00368075 NLM ISO Abbreviation: Science Subsets: PubMed not MEDLINE; MEDLINE
- Subject
- Language
- English
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.