If carbon dioxide is a blanket of average thickness over heating the earth for centuries, methane is like a blanket seven feet thick with over 80 times the heat-trapping power of CO2 for about two decades after its release.

如果二氧化碳是覆盖在地球上加热的毯子，已经持续几个世纪，那么甲烷就像是一条七英尺厚的毯子，在释放后的大约20年内，它捕捉的热量是二氧化碳的80多倍。