Cow flatulence
It has been estimated that 9 to 12% of the energy that a cow consumes is turned to methane that is released either through flatulence or burping (Radford, 2001). A huge number of factors affect methane emission, including diet, barn conditions and whether the cow is lactating, but an average cow in a barn produces 542 liters of methane a day, and 600 liters when out in a field (Adam, 2000).

This, apparently, makes commercially farmed cattle a major contributor to the greenhouse effect.

- posted by Rallix @ 12:30 AM