Cow farts are worse than car emissions?

Question

Obviously, we need to all become vegetarians and kill all animals.

http://www.un.org/apps/news/story.asp?NewsID=20772&Cr=global&Cr1=warming

Answer 1

I think cars only account for 20% of all greenhouse emissions. Big business, large factories, the burning of fossil fuels for energy account for the largest percentage of greenhouse emissions. With cows they emit methane gas and it is primarily from belching and not flatulance. This might account for about 1% of the overall greenhouse gases put in the air because of human activities but that is but a reasonable estimation on my part. The eruption of Mount St. Helens in the early 80 put into the atmosphere more greenhouse gases than all of the vehicles on the roads in the United States since the invention of the automoble. However this is a natural emission not a man made one and it does not count towards the man-made greenhouse emissions problem.