Do grain fed cattle produce more or less methane than grass fed?
They produce LESS. Cattle raised on pasture actually produce more methane than feedlot animals, on a per-cow basis. Next to carbon dioxide, methane is the most destabilizing gas to the planet. Methane is actually 24 times more potent a greenhouse gas than carbon dioxide, and its concentration in the atmosphere is rising even faster. The primary reason that concentrations of atmospheric methane are now triple what they were when they began rising a century ago is beef production. Yes, cattle raised on pasture actually produce more methane than feedlot animals, on a per-cow basis. http://www.healthyat100.org/display.