@article{Saunois:2020:10.5194/essd-12-1561-2020,
author = {Saunois, M and Stavert, AR and Poulter, B and Bousquet, P and Canadell, JG and Jackson, RB and Raymond, PA and Dlugokencky, EJ and Houweling, S and Patra, PK and Ciais, P and Arora, VK and Bastviken, D and Bergamaschi, P and Blake, DR and Brailsford, G and Bruhwiler, L and Carlson, KM and Carrol, M and Castaldi, S and Chandra, N and Crevoisier, C and Crill, PM and Covey, K and Curry, CL and Etiope, G and Frankenberg, C and Gedney, N and Hegglin, M and Hoglund-Isaksson, L and Hugelius, G and Ishizawa, M and Ito, A and Janssens-Maenhout, G and Jensen, KM and Joos, F and Kleinen, T and Krummel, PB and Langenfelds, RL and Laruelle, GG and Liu, L and Machida, T and Maksyutov, S and McDonald, KC and McNorton, J and Miller, PA and Melton, JR and Morino, I and Muller, J and Murguia-Flores, F and Naik, V and Niwa, Y and Noce, S and Doherty, SO and Parker, RJ and Peng, C and Peng, S and Peters, GP and Prigent, C and Prinn, R and Ramonet, M and Regnier, P and Riley, WJ and Rosentreter, JA and Seg},
doi = {10.5194/essd-12-1561-2020},
journal = {Earth System Science Data},
pages = {1561--1623},
title = {The global methane budget 2000-2017},
url = {http://dx.doi.org/10.5194/essd-12-1561-2020},
volume = {12},
year = {2020}
}

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TY  - JOUR
AB  - Understanding and quantifying the global methane (CH4) budget is important for assessing realistic pathways to mitigate climate change. Atmospheric emissions and concentrations of CH4 continue to increase, making CH4 the second most important human-influenced greenhouse gas in terms of climate forcing, after carbon dioxide (CO2). The relative importance of CH4 compared to CO2 depends on its shorter atmospheric lifetime, stronger warming potential, and variations in atmospheric growth rate over the past decade, the causes of which are still debated. Two major challenges in reducing uncertainties in the atmospheric growth rate arise from the variety of geographically overlapping CH4 sources and from the destruction of CH4 by short-lived hydroxyl radicals (OH). To address these challenges, we have established a consortium of multidisciplinary scientists under the umbrella of the Global Carbon Project to synthesize and stimulate new research aimed at improving and regularly updating the global methane budget. Following Saunois et al. (2016), we present here the second version of the living review paper dedicated to the decadal methane budget, integrating results of top-down studies (atmospheric observations within an atmospheric inverse-modelling framework) and bottom-up estimates (including process-based models for estimating land surface emissions and atmospheric chemistry, inventories of anthropogenic emissions, and data-driven extrapolations).For the 2008–2017 decade, global methane emissions are estimated by atmospheric inversions (a top-down approach) to be 576 Tg CH4 yr−1 (range 550–594, corresponding to the minimum and maximum estimates of the model ensemble). Of this total, 359 Tg CH4 yr−1 or ∼ 60 % is attributed to anthropogenic sources, that is emissions caused by direct human activity (i.e. anthropogenic emissions; range 336–376 Tg CH4 yr−1 or
AU  - Saunois,M
AU  - Stavert,AR
AU  - Poulter,B
AU  - Bousquet,P
AU  - Canadell,JG
AU  - Jackson,RB
AU  - Raymond,PA
AU  - Dlugokencky,EJ
AU  - Houweling,S
AU  - Patra,PK
AU  - Ciais,P
AU  - Arora,VK
AU  - Bastviken,D
AU  - Bergamaschi,P
AU  - Blake,DR
AU  - Brailsford,G
AU  - Bruhwiler,L
AU  - Carlson,KM
AU  - Carrol,M
AU  - Castaldi,S
AU  - Chandra,N
AU  - Crevoisier,C
AU  - Crill,PM
AU  - Covey,K
AU  - Curry,CL
AU  - Etiope,G
AU  - Frankenberg,C
AU  - Gedney,N
AU  - Hegglin,M
AU  - Hoglund-Isaksson,L
AU  - Hugelius,G
AU  - Ishizawa,M
AU  - Ito,A
AU  - Janssens-Maenhout,G
AU  - Jensen,KM
AU  - Joos,F
AU  - Kleinen,T
AU  - Krummel,PB
AU  - Langenfelds,RL
AU  - Laruelle,GG
AU  - Liu,L
AU  - Machida,T
AU  - Maksyutov,S
AU  - McDonald,KC
AU  - McNorton,J
AU  - Miller,PA
AU  - Melton,JR
AU  - Morino,I
AU  - Muller,J
AU  - Murguia-Flores,F
AU  - Naik,V
AU  - Niwa,Y
AU  - Noce,S
AU  - Doherty,SO
AU  - Parker,RJ
AU  - Peng,C
AU  - Peng,S
AU  - Peters,GP
AU  - Prigent,C
AU  - Prinn,R
AU  - Ramonet,M
AU  - Regnier,P
AU  - Riley,WJ
AU  - Rosentreter,JA
AU  - Segers,A
AU  - Simpson,IJ
AU  - Shi,H
AU  - Smith,SJ
AU  - Steele,LP
AU  - Thornton,BF
AU  - Tian,H
AU  - Tohjima,Y
AU  - Tubiello,FN
AU  - Tsuruta,A
AU  - Viovy,N
AU  - Voulgarakis,A
AU  - Weber,TS
AU  - van,Weele M
AU  - van,der Werf GR
AU  - Weiss,RF
AU  - Worthy,D
AU  - Wunch,D
AU  - Yin,Y
AU  - Yoshida,Y
AU  - Zhang,W
AU  - Zhang,Z
AU  - Zhao,Y
AU  - Zheng,B
AU  - Zhu,Q
AU  - Zhu,Q
AU  - Zhuang,Q
DO  - 10.5194/essd-12-1561-2020
EP  - 1623
PY  - 2020///
SN  - 1866-3508
SP  - 1561
TI  - The global methane budget 2000-2017
T2  - Earth System Science Data
UR  - http://dx.doi.org/10.5194/essd-12-1561-2020
UR  - http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000551377400001&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
UR  - https://essd.copernicus.org/articles/12/1561/2020/
UR  - http://hdl.handle.net/10044/1/81673
VL  - 12
ER  - 

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