Blar i NILU Brage på forfatter "Helmig, D."
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Variability in Atmospheric Methane From Fossil Fuel and Microbial Sources Over the Last Three Decades
Thompson, Rona Louise; Nisbet, E. G.; Pisso, Ignacio; Stohl, Andreas; Blake, D.; Dlugokencky, E. J.; Helmig, D.; White, J. W. C. (Journal article; Peer reviewed, 2018)Atmospheric measurements show an increase in CH4 from the 1980s to 1998 followed by a period of near‐zero growth until 2007. However, from 2007, CH4 has increased again. Understanding the variability in CH4 is critical for ...