Global Carbon Budget 2021

  title={Global Carbon Budget 2021},
  author={Pierre Friedlingstein and Matthew W. Jones and Michael O’Sullivan and Robbie M. Andrew and Dorothee C. E. Bakker and Judith Hauck and Corinne Le Quéré and Glen P. Peters and Wouter Peters and Julia Pongratz and Stephen A. Sitch and Josep G. Canadell and Philippe Ciais and Robert B. Jackson and Simone R. Alin and Peter Anthoni and Nicholas Robert Bates and Meike Becker and Nicolas Bellouin and Laurent Bopp and Thi Tuyet Trang Chau and Fr{\'e}d{\'e}ric Chevallier and Louise P. Chini and Margot Cronin and Kim I. Currie and Bertrand Decharme and Laique Merlin Djeutchouang and Xinyu Dou and Wiley Evans and Richard A. Feely and Liang Feng and Thomas Gasser and Dennis Gilfillan and Thanos Gkritzalis and Giacomo Grassi and Luke Gregor and Nicolas Gruber and {\"O}zg{\"u}r G{\"u}rses and I. C. Harris and Richard A. Houghton and George C. Hurtt and Yosuke Iida and Tatiana Ilyina and Ingrid T. Luijkx and Atul K. Jain and Stephen D Jones and Etsushi Kato and Daniel Kennedy and Kees Klein Goldewijk and J{\"u}rgen Knauer and Jan Ivar Korsbakken and Arne K{\"o}rtzinger and Peter Landsch{\"u}tzer and Siv K. Lauvset and Nathalie Lef{\`e}vre and Sebastian Lienert and Junjie Liu and Gregg Marland and Patrick C. McGuire and Joe R. Melton and David R. Munro and Julia Esther Marlene Sophia Nabel and Shin‐ichiro Nakaoka and Yosuke Niwa and Tsuneo Ono and Denis Pierrot and Benjamin I Poulter and Gregor Rehder and Laure Resplandy and Eddy Robertson and Christian R{\"o}denbeck and Thais Michele Rosan and J{\"o}rg Schwinger and Clemens Schwingshackl and Roland S{\'e}f{\'e}rian and Adrienne J. Sutton and Colm Sweeney and Toste Tanhua and Pieter P. Tans and Hanqin Tian and Bronte Tilbrook and Francesco Nicola Tubiello and Guido R. van der Werf and Nicolas Vuichard and Chisato Wada and Rik Wanninkhof and Andrew J. Watson and David Willis and Andy Wiltshire and Wenping Yuan and Chao Yue and Xu Yue and S{\"o}nke Zaehle and Jiye Zeng},
Abstract. Accurate assessment of anthropogenic carbon dioxide (CO2) emissions and their redistribution among the atmosphere, ocean, and terrestrial biosphere in a changing climate is critical 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 CO2 emissions (EFOS) are… 
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