Human activities now fuel two-thirds of global methane emissions

Jackson, R B ¹     ; Saunois, M ²     ; Martinez, A ²     ; Canadell, J G ³     ; X Yu ⁴     ; M Li ⁴     ; Poulter, B ⁵     ; Raymond, P A ⁶     ; Regnier, P ⁷     ; Ciais, P ²     ; Davis, S J ⁴     ; Patra, P K <sup>8    

1</sup>  Department of Earth System Science, Stanford University , Stanford, CA 94305-2210, United States of America; Woods Institute for the Environment and Precourt Institute for Energy , Stanford University, Stanford, CA 94305-2210, United States of America 
²  Laboratoire des Sciences du Climat et de l’Environnement, LSCE-IPSL (CEA-CNRS-UVSQ) , Université Paris-Saclay, 91191 Gif-sur-Yvette, France 
³  Global Carbon Project , CSIRO Environment, Canberra ACT 2601, Australia 
⁴  Department of Earth System Science, Stanford University , Stanford, CA 94305-2210, United States of America 
⁵  Biospheric Sciences Laboratory, NASA Goddard Space Flight Center , Greenbelt, MD 20771, United States of America 
⁶  Yale School of the Environment, Yale University , New Haven, CT 06511, United States of America 
⁷  Department Geoscience, Environment & Society, Université Libre de Bruxelles , 1050 Brussels, Belgium 
⁸  Research Institute for Global Change , JAMSTEC, 3173-25 Showa-machi, Kanazawa, Yokohama 236-0001, Japan; Research Institute for Humanity and Nature , 457-4 Motoyama, Kamigamo, Kyoto 6038047, Japan