A 21st-century shift from fossil-fuel to biogenic methane emissions indicated by ¹³CH₄.
Schaefer H, Mikaloff Fletcher SE, Veidt C, Lassey KR, Brailsford GW, Bromley TM, Dlugokencky EJ, Michel SE, Miller JB, Levin I, Lowe DC, Martin RJ, Vaughn BH, White JW.
Schaefer H, et al. Among authors: brailsford gw.
Science. 2016 Apr 1;352(6281):80-4. doi: 10.1126/science.aad2705. Epub 2016 Mar 10.
Science. 2016.
PMID: 26966190