"According to a new report published by the United Nations Food and
Agriculture organization, the livestock sector generates more
greenhouse gas emissions as measured in CO2 equivalent -- 18 percent
-- than transport.
Henning Steinfeld, Chief of FAO's Livestock Information & Policy
Branch and senior author of the report says: "Livestock are one of the
most significant contributors to today's most serious environmental
problems. Urgent action is required to remedy the situation."
Please see more information on the bite global warming link below
Here's another article from the UK telegraph with similar data.