Global Increase In Atmospheric Methane Likely Caused By Unusual Arctic Warmth, Tropical Wetness
Sunday, September 27, 2009 - 15:42
in Earth & Climate
Unusually high temperatures in the Arctic and heavy rains in the tropics likely drove a global increase in atmospheric methane in 2007 and 2008 after a decade of near-zero growth, according to a new study. Methane is the second most abundant greenhouse gas after carbon dioxide, albeit a distant second.