Preindustrial (CH4)-C-14 indicates greater anthropogenic fossil CH4 emissions

Hmiel, B; Petrenko, VV; Dyonisius, MN; Buizert, C; Smith, AM; Place, PF; Harth, C; Beaudette, R; Hua, Q; Yang, B; Vimont, I; Michel, SE; Severinghaus, JP; Etheridge, D; Bromley, T; Schmitt, J; Fain, X; Weiss, RF; Dlugokencky, E

Hmiel, B (corresponding author), Univ Rochester, Dept Earth & Environm Sci, 601 Elmwood Ave, Rochester, NY 14627 USA.

NATURE, 2020; 578 (7795): 409

Abstract

Atmospheric methane (CH4) is a potent greenhouse gas, and its mole fraction has more than doubled since the preindustrial era(1). Fossil fuel extracti......

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