Natural methane emissions occur everywhere, anyplace there is decomposing plants or dead animals. Ever hear of sewer gas, or swamp gas ---METHANE. Considering all the swamps and marshes in the world, along with all the rotting matter in the oceans: animal and plant; volcanoes etc. the natural side of the ledger out produces all the cattle in the world by a factor of a hundred or more. The natural variation in methane output overwhelms the addition of methane from cattle.
Consider all the termites in the world: they out weigh all humanity and they are one of the greatest emitters of methane in the world.
This Methane hysteria is another way for these eco-nuts to impose their vegetarians ways upon us !
