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Volume 10, issue 1 | Copyright
Earth Syst. Sci. Data, 10, 405-448, 2018
https://doi.org/10.5194/essd-10-405-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

Review article 12 Mar 2018

Review article | 12 Mar 2018

Global Carbon Budget 2017

Corinne Le Quéré1, Robbie M. Andrew2, Pierre Friedlingstein3, Stephen Sitch4, Julia Pongratz5, Andrew C. Manning6, Jan Ivar Korsbakken2, Glen P. Peters2, Josep G. Canadell7, Robert B. Jackson8, Thomas A. Boden9, Pieter P. Tans10, Oliver D. Andrews1, Vivek K. Arora11, Dorothee C. E. Bakker6, Leticia Barbero12,13, Meike Becker14,15, Richard A. Betts16,4, Laurent Bopp17, Frédéric Chevallier18, Louise P. Chini19, Philippe Ciais18, Catherine E. Cosca20, Jessica Cross20, Kim Currie21, Thomas Gasser22, Ian Harris23, Judith Hauck24, Vanessa Haverd25, Richard A. Houghton26, Christopher W. Hunt27, George Hurtt19, Tatiana Ilyina5, Atul K. Jain28, Etsushi Kato29, Markus Kautz30, Ralph F. Keeling31, Kees Klein Goldewijk32,33, Arne Körtzinger34, Peter Landschützer5, Nathalie Lefèvre35, Andrew Lenton36,37, Sebastian Lienert38,39, Ivan Lima40, Danica Lombardozzi41, Nicolas Metzl35, Frank Millero42, Pedro M. S. Monteiro43, David R. Munro44, Julia E. M. S. Nabel5, Shin-ichiro Nakaoka45, Yukihiro Nojiri45, X. Antonio Padin46, Anna Peregon18, Benjamin Pfeil14,15, Denis Pierrot12,13, Benjamin Poulter47,48, Gregor Rehder49, Janet Reimer50, Christian Rödenbeck51, Jörg Schwinger52, Roland Séférian53, Ingunn Skjelvan52, Benjamin D. Stocker54, Hanqin Tian55, Bronte Tilbrook36,37, Francesco N. Tubiello56, Ingrid T. van der Laan-Luijkx57, Guido R. van der Werf58, Steven van Heuven59, Nicolas Viovy18, Nicolas Vuichard18, Anthony P. Walker60, Andrew J. Watson4, Andrew J. Wiltshire16, Sönke Zaehle51, and Dan Zhu18 Corinne Le Quéré et al.
  • 1Tyndall Centre for Climate Change Research, University of East Anglia, Norwich Research Park, Norwich NR4 7TJ, UK
  • 2CICERO Center for International Climate Research, 0349 Oslo, Norway
  • 3College of Engineering, Mathematics and Physical Sciences, University of Exeter, Exeter EX4 4QF, UK
  • 4College of Life and Environmental Sciences, University of Exeter, Exeter EX4 4RJ, UK
  • 5Max Planck Institute for Meteorology, Hamburg, Germany
  • 6Centre for Ocean and Atmospheric Sciences, School of Environmental Sciences, University of East Anglia, Norwich Research Park, Norwich NR4 7TJ, UK
  • 7Global Carbon Project, CSIRO Oceans and Atmosphere, GPO Box 1700, Canberra, ACT 2601, Australia
  • 8Department of Earth System Science, Woods Institute for the Environment and Precourt Institute for Energy, Stanford University, Stanford, CA 94305, USA
  • 9Climate Change Science Institute, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
  • 10National Oceanic and Atmospheric Administration, Earth System Research Laboratory (NOAA/ESRL), Boulder, CO 80305, USA
  • 11Canadian Centre for Climate Modelling and Analysis, Climate Research Division, Environment and Climate Change Canada, Victoria, BC, Canada
  • 12Cooperative Institute for Marine and Atmospheric Studies, Rosenstiel School for Marine and Atmospheric Science, University of Miami, Miami, FL 33149, USA
  • 13National Oceanic and Atmospheric Administration/Atlantic Oceanographic and Meteorological Laboratory (NOAA/AOML), Miami, FL 33149, USA
  • 14Geophysical Institute, University of Bergen, 5020 Bergen, Norway
  • 15Bjerknes Centre for Climate Research, 5007 Bergen, Norway
  • 16Met Office Hadley Centre, FitzRoy Road, Exeter EX1 3PB, UK
  • 17Laboratoire de Météorologie Dynamique, Institut Pierre-Simon Laplace, CNRS-ENS-UPMC-X, Département de Géosciences, École Normale Supérieure, 24 rue Lhomond, 75005 Paris, France
  • 18Laboratoire des Sciences du Climat et de l'Environnement, Institut Pierre-Simon Laplace, CEA-CNRS-UVSQ, CE Orme des Merisiers, 91191 Gif-sur-Yvette CEDEX, France
  • 19Department of Geographical Sciences, University of Maryland, College Park, MD 20742, USA
  • 20Pacific Marine Environmental Laboratory, National Oceanic and Atmospheric Administration, Seattle, WA 98115, USA
  • 21National Institute of Water and Atmospheric Research (NIWA), Dunedin 9054, New Zealand
  • 22International Institute for Applied Systems Analysis (IIASA), 2361 Laxenburg, Austria
  • 23NCAS-Climate, Climatic Research Unit, School of Environmental Sciences, University of East Anglia, Norwich Research Park, Norwich, NR4 7TJ, UK
  • 24Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research, Postfach 120161, 27515 Bremerhaven, Germany
  • 25CSIRO Oceans and Atmosphere, GPO Box 1700, Canberra, ACT 2601, Australia
  • 26Woods Hole Research Centre (WHRC), Falmouth, MA 02540, USA
  • 27Ocean Process Analysis Laboratory, University of New Hampshire, Durham, NH 03824, USA
  • 28Department of Atmospheric Sciences, University of Illinois, Urbana, IL 61801, USA
  • 29Institute of Applied Energy (IAE), Minato-ku, Tokyo 105-0003, Japan
  • 30Karlsruhe Institute of Technology, Institute of Meteorology and Climate Research/Atmospheric Environmental Research, 82467 Garmisch-Partenkirchen, Germany
  • 31University of California, San Diego, Scripps Institution of Oceanography, La Jolla, CA 92093-0244, USA
  • 32PBL Netherlands Environmental Assessment Agency, Bezuidenhoutseweg 30, P.O. Box 30314, 2500 GH, The Hague, the Netherlands
  • 33Faculty of Geosciences, Department IMEW, Copernicus Institute of Sustainable Development, Heidelberglaan 2, P.O. Box 80115, 3508 TC, Utrecht, the Netherlands
  • 34GEOMAR Helmholtz Centre for Ocean Research Kiel, Düsternbrooker Weg 20, 24105 Kiel, Germany
  • 35Sorbonne Universités (UPMC, Univ Paris 06), CNRS, IRD, MNHN, LOCEAN/IPSL Laboratory, 75252 Paris, France
  • 36CSIRO Oceans and Atmosphere, P.O. Box 1538, Hobart, TAS, Australia
  • 37Antarctic Climate and Ecosystem Cooperative Research Centre, University of Tasmania, Hobart, TAS, Australia
  • 38Climate and Environmental Physics, Physics Institute, University of Bern, Bern, Switzerland
  • 39Oeschger Centre for Climate Change Research, University of Bern, Bern, Switzerland
  • 40Woods Hole Oceanographic Institution (WHOI), Woods Hole, MA 02543, USA
  • 41National Center for Atmospheric Research, Climate and Global Dynamics, Terrestrial Sciences Section, Boulder, CO 80305, USA
  • 42Department of Ocean Sciences, RSMAS/MAC, University of Miami, 4600 Rickenbacker Causeway, Miami, FL 33149, USA
  • 43Ocean Systems and Climate, CSIR-CHPC, Cape Town, 7700, South Africa
  • 44Department of Atmospheric and Oceanic Sciences and Institute of Arctic and Alpine Research, University of Colorado, Campus Box 450, Boulder, CO 80309-0450, USA
  • 45Center for Global Environmental Research, National Institute for Environmental Studies (NIES), 16-2 Onogawa, Tsukuba, Ibaraki 305-8506, Japan
  • 46Instituto de Investigacións Mariñas (CSIC), Vigo 36208, Spain
  • 47NASA Goddard Space Flight Center, Biospheric Science Laboratory, Greenbelt, MD 20771, USA
  • 48Department of Ecology, Montana State University, Bozeman, MT 59717, USA
  • 49Leibniz Institute for Baltic Sea Research Warnemünde, 18119 Rostock, Germany
  • 50School of Marine Science and Policy, University of Delaware, Newark, DE 19716, USA
  • 51Max Planck Institute for Biogeochemistry, P.O. Box 600164, Hans-Knöll-Str. 10, 07745 Jena, Germany
  • 52Uni Research Climate, Bjerknes Centre for Climate Research, 5007 Bergen, Norway
  • 53Centre National de Recherche Météorologique, Unite mixte de recherche 3589 Météo-France/CNRS, 42 Avenue Gaspard Coriolis, 31100 Toulouse, France
  • 54CREAF, E08193 Bellaterra (Cerdanyola del Vallès), Catalonia, Spain
  • 55School of Forestry and Wildlife Sciences, Auburn University, 602 Ducan Drive, Auburn, AL 36849, USA
  • 56Statistics Division, Food and Agriculture Organization of the United Nations, Via Terme di Caracalla, Rome 00153, Italy
  • 57Department of Meteorology and Air Quality, Wageningen University & Research, P.O. Box 47, 6700AA Wageningen, the Netherlands
  • 58Faculty of Science, Vrije Universiteit Amsterdam, Amsterdam, the Netherlands
  • 59Energy and Sustainability Research Institute Groningen (ESRIG), University of Groningen, Groningen, the Netherlands
  • 60Environmental Sciences Division & Climate Change Science Institute, Oak Ridge National Laboratory, Oak Ridge, TN, USA

Abstract. Accurate assessment of anthropogenic carbon dioxide (CO2) emissions and their redistribution among the atmosphere, ocean, and terrestrial biosphere – 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 data sets and methodology to quantify the five major components of the global carbon budget and their uncertainties. CO2 emissions from fossil fuels and industry (EFF) are based on energy statistics and cement production data, respectively, while emissions from land-use change (ELUC), mainly deforestation, are based on land-cover change data and bookkeeping models. The global atmospheric CO2 concentration is measured directly and its rate of growth (GATM) is computed from the annual changes in concentration. The ocean CO2 sink (SOCEAN) and terrestrial CO2 sink (SLAND) are estimated with global process models constrained by observations. The resulting carbon budget imbalance (BIM), 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 ±1σ. For the last decade available (2007–2016), EFF was 9.4±0.5GtCyr−1, ELUC 1.3±0.7GtCyr−1, GATM 4.7±0.1GtCyr−1, SOCEAN 2.4±0.5GtCyr−1, and SLAND 3.0±0.8GtCyr−1, with a budget imbalance BIM of 0.6GtCyr−1 indicating overestimated emissions and/or underestimated sinks. For year 2016 alone, the growth in EFF was approximately zero and emissions remained at 9.9±0.5GtCyr−1. Also for 2016, ELUC was 1.3±0.7GtCyr−1, GATM was 6.1±0.2GtCyr−1, SOCEAN was 2.6±0.5GtCyr−1, and SLAND was 2.7±1.0GtCyr−1, with a small BIM of −0.3GtC. GATM continued to be higher in 2016 compared to the past decade (2007–2016), reflecting in part the high fossil emissions and the small SLAND consistent with El Niño conditions. The global atmospheric CO2 concentration reached 402.8±0.1ppm averaged over 2016. For 2017, preliminary data for the first 6–9 months indicate a renewed growth in EFF of +2.0% (range of 0.8 to 3.0%) based on national emissions projections for China, USA, and India, and projections of gross domestic product (GDP) corrected for recent changes in the carbon intensity of the economy for the rest of the world. This living data update documents changes in the methods and data sets used in this new global carbon budget compared with previous publications of this data set (Le Quéré et al., 2016, 2015b, a, 2014, 2013). All results presented here can be downloaded from https://doi.org/10.18160/GCP-2017 (GCP, 2017).

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The Global Carbon Budget 2017 describes data sets and methodology to quantify the five major components of the global carbon budget and their uncertainties. It is the 12th annual update and the 6th published in this journal.
The Global Carbon Budget 2017 describes data sets and methodology to quantify the five major...
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