See also:

• Science: Agriculture: Animals: Mammals  (97)
• Science: Agriculture: Animals: Waste Management  (8)
• Science: Environment: Climate Change  (213)

• Ruminant Livestock Efficiency Program - US EPA - Ruminant livestock such as cattle and sheep are the largest source of methane emissions resulting from human activity. Methane is a potent greenhouse gas. RLEP is a joint EPA-USDA program helping livestock producers improve their operations' efficiency, preserve natural resources, and reduce methane emissions.

• Study: Fish Oil Stifles Greenhouse Gas - CNN reports that Belgian scientists found that adding fish oil to animal fodder could cut livestock release of methane. (March 12, 2003)