Global Carbon Budget 2020

作者：Pierre Friedlingstein, Michael O’Sullivan, Matthew W. Jones, Robbie M. Andrew, Judith Hauck, Are S. Olsen, Glen P. Peters, Wouter Peters, Julia Pongratz, Stephen A. Sitch, Corinne Le Quéré, Josep G. Canadell, Philippe Ciais, Robert B. Jackson, Simone R. Alin, Luiz E. O. C. Aragão, Almut Arneth, Vivek Arora, Nicholas Robert Bates, Meike Becker, Alice Benoit-Cattin, Henry C. Bittig, Laurent Bopp, Selma Bultan, Naveen Chandra, Frédéric Chevallier, Louise Parsons Chini, Wiley Evans, Liesbeth Florentie, Piers M. de F. Forster, Thomas Gasser, Marion Gehlen, Dennis Gilfillan, Thanos Gkritzalis, Luke Gregor, Nicolas Gruber, Ian Charles Harris, Kerstin Hartung, Vanessa Haverd, R. A. Houghton, Tatiana Ilyina, Atul Kumar Jain, Émilie Joetzjer, Koji Kadono, Etsushi Kato, Vassilis Kitidis, Jan Ivar Korsbakken, Peter Landschützer, Nathalie Lefèvre, Andrew Allan Lenton, Sebastian Lienert, Zhu Liu, Danica Lombardozzi, Gregg Marland, Nicolas Metzl, David R. Munro, Julia E. M. S. Nabel, Shin‐Ichiro Nakaoka, Yosuke Niwa, Kevin D. O’Brien, Tsuneo Ono, Paul I. Palmer, Denis Pierrot, Benjamin Poulter, Laure Resplandy, Eddy Robertson, Christian Rödenbeck, Jörg Schwinger, Roland Séférian, Ingunn Skjelvan, Adam J. P. Smith, Adrienne J. Sutton, Toste Tanhua, Pieter P. Tans, Hanqin Tian, Bronte David Tilbrook, Guido R. van der Werf, Nicolas Vuichard, Anthony P. Walker, Rik H. Wanninkhof, Andrew James Watson, David Willis, Andrew J. Wiltshire, Wenping Yuan, Xu Yue, Sönke Zaehle · 发表于：Earth system science data · 年份：2020 · DOI：10.5194/essd-12-3269-2020 · 被引用次数：2578 · 研究领域：Atmospheric and Environmental Gas Dynamics、Carbon Dioxide Capture Technologies、Atmospheric chemistry and aerosols

Accurate assessment of anthropogenic carbon dioxide (CO 2 ) emissions and their redistribution among the atmosphere, ocean, and terrestrial biosphere in a changing climate – the “global carbon budget” – is important to better understand the global carbon cycle, support the development of climate policies, and project future climate change. Here we describe and synthesize data sets and methodology to quantify the five major components of the global carbon budget and their uncertainties. Fossil CO 2 emissions ( E FOS ) are based on energy statistics and cement production data, while emissions from land-use change ( E LUC ), mainly deforestation, are based on land use and land-use change data and bookkeeping models. Atmospheric CO 2 concentration is measured directly and its growth rate ( G ATM ) is computed from the annual changes in concentration. The ocean CO 2 sink ( S OCEAN ) and terrestrial CO 2 sink ( S LAND ) are estimated with global process models constrained by observations. The resulting carbon budget imbalance ( B IM ), the difference between the estimated total emissions and the estimated changes in the atmosphere, ocean, and terrestrial biosphere, is a measure of imperfect data and understanding of the contemporary carbon cycle. All uncertainties are reported as ±1 σ . For the last decade available (2010–2019), E FOS was 9.6 ± 0.5 GtC yr −1 excluding the cement carbonation sink (9.4 ± 0.5 GtC yr −1 when the cement carbonation sink is included), and E LUC was 1.6 ±...