Table 1 Isotopic signatures of the three source categories used in our box-model analysis

From: Reduced biomass burning emissions reconcile conflicting estimates of the post-2006 atmospheric methane budget

Source type

Previous literature δ13C-CH4 (‰)

Schwietzke et al._201615 δ13C-CH4 (‰)

Biogenic

−60 ± 4.3

−62.3 ± 0.7

Fossil fuel (+natural seepages)

−39 ± 1.7

−44 ± 0.7

Biomass burning

−24.0 ± 2.0

−22.3 ± 1.9

  1. The isotopic signatures are reported as means ± 1-sigma uncertainty
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