Joel Salatin: Myths about Meat

http://grist.org/sustainable-farming/farmer-responds-to-the-new-york-times-re-sustainable-meat/

"Let’s go point by point. First, that grass-grazing cows emit more methane than grain-fed ones. This is factually false. Actually, the amount of methane emitted by fermentation is the same whether it occurs in the cow or outside. Whether the feed is eaten by an herbivore or left to rot on its own, the methane generated is identical. Wetlands emit some 95 percent of all methane in the world; herbivores are insignificant enough to not even merit consideration."