I think ruminants including cows do significantly contribute to methane emissions by burping. "Cows don't emit 400 quarts of daily flatulence, as the term is u

I think ruminants including cows do significantly contribute to methane emissions by burping. "Cows don't emit 400 quarts of daily flatulence, as the term is usually understood. According to Professor Johnson, they emit 400 quarts' worth of burps,known in polite circles as eructation." http://www.straightdope.com/columns/read/832/do-cow-and-termite-flatulence-threaten-the-earths-atmosphere http://www.straightdope.com/columns/read/832/do-cow-and-term...