Articles | Volume 25, issue 13
https://doi.org/10.5194/acp-25-6757-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/acp-25-6757-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Multi-observational estimation of regional and sectoral emission contributions to the persistent high growth rate of atmospheric CH4 for 2020–2022
Earth System Division, National Institute for Environmental Studies, Tsukuba, Japan
Yasunori Tohjima
Earth System Division, National Institute for Environmental Studies, Tsukuba, Japan
Yukio Terao
Earth System Division, National Institute for Environmental Studies, Tsukuba, Japan
Tazu Saeki
Earth System Division, National Institute for Environmental Studies, Tsukuba, Japan
Akihiko Ito
Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
Taku Umezawa
Earth System Division, National Institute for Environmental Studies, Tsukuba, Japan
Kyohei Yamada
Earth System Division, National Institute for Environmental Studies, Tsukuba, Japan
now at: Division for Advanced Research Promotion, National Institute of Polar Research, Tachikawa, Japan
Motoki Sasakawa
Earth System Division, National Institute for Environmental Studies, Tsukuba, Japan
Toshinobu Machida
Earth System Division, National Institute for Environmental Studies, Tsukuba, Japan
Shin-Ichiro Nakaoka
Earth System Division, National Institute for Environmental Studies, Tsukuba, Japan
Hideki Nara
Earth System Division, National Institute for Environmental Studies, Tsukuba, Japan
Hiroshi Tanimoto
Earth System Division, National Institute for Environmental Studies, Tsukuba, Japan
Hitoshi Mukai
Earth System Division, National Institute for Environmental Studies, Tsukuba, Japan
Yukio Yoshida
Earth System Division, National Institute for Environmental Studies, Tsukuba, Japan
Shinji Morimoto
Graduate School of Science, Tohoku University, Sendai, Japan
Shinya Takatsuji
Atmospheric Environment and Ocean Division, Atmosphere and Ocean Department, Japan Meteorological Agency, Tokyo, Japan
Kazuhiro Tsuboi
Atmospheric Environment and Ocean Division, Atmosphere and Ocean Department, Japan Meteorological Agency, Tokyo, Japan
Department of Climate and Geochemistry Research, Meteorological Research Institute, Tsukuba, Japan
Yousuke Sawa
Department of Climate and Geochemistry Research, Meteorological Research Institute, Tsukuba, Japan
Hidekazu Matsueda
Department of Economics on Sustainability, Dokkyo University, Soka, Japan
Kentaro Ishijima
Department of Climate and Geochemistry Research, Meteorological Research Institute, Tsukuba, Japan
Ryo Fujita
Department of Climate and Geochemistry Research, Meteorological Research Institute, Tsukuba, Japan
Daisuke Goto
Division for Advanced Research Promotion, National Institute of Polar Research, Tachikawa, Japan
Cooperative Institute for Research in Environmental Sciences, University of Colorado Boulder, Boulder, USA
Global Monitoring Laboratory, National Oceanic and Atmospheric Administration, Boulder, USA
Kenneth Schuldt
Cooperative Institute for Research in Environmental Sciences, University of Colorado Boulder, Boulder, USA
Global Monitoring Laboratory, National Oceanic and Atmospheric Administration, Boulder, USA
Michal Heliasz
Centre for Environmental and Climate Science, Lund University, Lund, Sweden
Tobias Biermann
Centre for Environmental and Climate Science, Lund University, Lund, Sweden
Lukasz Chmura
Faculty of Physics and Applied Computer Science, AGH University of Krakow, Krakow, Poland
Institute of Meteorology and Water Management – National Research Institute, Warsaw, Poland
Jarsolaw Necki
Faculty of Physics and Applied Computer Science, AGH University of Krakow, Krakow, Poland
Irène Xueref-Remy
Aix Marseille Univ, CNRS, Avignon Université, Institut de Recherche pour le Développement IRD, Institut Méditerranéen de la Biodiversité et d'Ecologie marine et continentale IMBE, Aix-en-Provence, France
Damiano Sferlazzo
Department for Sustainability Laboratory for Models and Measurements for Air Quality and Climate Observations (SSPT-CLIMAR-AOC), ENEA – Italian National Agency for New Technologies, Energy and Sustainable Economic Development, Station for Climate Observations on the island of Lampedusa, Italy
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Latest update: 07 Jul 2025
Short summary
This study estimated regional and sectoral emission contributions to the unprecedented surge of atmospheric methane for 2020–2022. The methane is the second most important greenhouse gas, and its emissions reduction is urgently required to mitigate global warming. Numerical modeling-based estimates with three different sets of atmospheric observations consistently suggested large contributions of biogenic emissions from South Asia and Southeast Asia to the surge of atmospheric methane.
This study estimated regional and sectoral emission contributions to the unprecedented surge of...
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