Methanogenic archaea (Methanobrevibacter, Methanosarcina) reduce CO2 + H2 -> CH4; rumen + wetland + landfill emissions are major anthropogenic-CH4 source (~60%); 25-30x GWP of CO2 over 100 yr.
Methanogenic archaea (Methanobrevibacter, Methanosarcina) reduce CO2 + H2 -> CH4; rumen + wetland + landfill emissions are major anthropogenic-CH4 source (~60%); 25-30x GWP of CO2 over 100 yr.