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Global Carbon Budget 2020

Friedlingstein, P.; O’Sullivan, M.; Jones, M. W.; Andrew, R. M.; Hauck, J.; Olsen, A.; Peters, G. P.; Peters, W.; Pongratz, J.; Sitch, S.; Le Quéré, C.; Canadell, J. G.; Ciais, P.; Jackson, R. B.; Alin, S.; Aragão, L. E. O. C.; Arneth, Almuth; Arora, V.; Bates, N. R.; Becker, M.; ... mehr

Abstract:
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. ... mehr

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Verlagsausgabe §
DOI: 10.5445/IR/1000129087
Veröffentlicht am 02.02.2021
Originalveröffentlichung
DOI: 10.5194/essd-12-3269-2020
Scopus
Zitationen: 18
Web of Science
Zitationen: 9
Dimensions
Zitationen: 26
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Meteorologie und Klimaforschung - Atmosphärische Umweltforschung (IMK-IFU)
Publikationstyp Zeitschriftenaufsatz
Publikationsdatum 11.12.2020
Sprache Englisch
Identifikator ISSN: 1866-3508, 1866-3516
KITopen-ID: 1000129087
HGF-Programm 12.02.02 (POF III, LK 01) Vegetation climate- and land use system
Erschienen in Earth system science data
Verlag Copernicus Publications
Band 12
Heft 4
Seiten 3269-3340
Nachgewiesen in Scopus
Dimensions
Web of Science
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