Since this article alludes to climate change, there is more evidence to a direct relation to atmospheric methane levels and temperature than any other substance. For instance in the 10 years preceding 2009 atmospheric methane levels dropped or stayed constant, surrounded by increases on either side, pre 1999 and now. Methane has a natural shelf life of about 10 years, mostly degrading into CO2. Man's contribution to atmospheric methane is minimal, most coming from nature itself, volcanos, seabed releases, ground release, plants, wildfires, ad nauseam.
Since this article alludes to climate change, there is more evidence to a direct relation to atmospheric methane levels and temperature than any other substance. For instance in the 10 years preceding 2009 atmospheric methane levels dropped or stayed constant, surrounded by increases on either side, pre 1999 and now. Methane has a natural shelf life of about 10 years, mostly degrading into CO2. Man's contribution to atmospheric methane is minimal, most coming from nature itself, volcanos, seabed releases, ground release, plants, wildfires, ad nauseam.