Nisbet et al. (2014) recently reviewed atmospheric methane concentrations and emissions, finding that after slowing growth rates through the 1990s, concentration growth rates have begun to accelerate again since 2007. And they're not sure why.
Clever detective work seems to eliminate decomposition of methane hydrates as a likely source, pointing instead toward wetlands and leakage from our natural gas systems and increased coal production.
Nisbet, E. G., E. J. Dlugokencky, et al. (2014). "Methane on the Rise—Again." Science 343(6170): 493-495.
Clever detective work seems to eliminate decomposition of methane hydrates as a likely source, pointing instead toward wetlands and leakage from our natural gas systems and increased coal production.
Nisbet, E. G., E. J. Dlugokencky, et al. (2014). "Methane on the Rise—Again." Science 343(6170): 493-495.
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