Is the methane from cows destroying the ozone? Argentine farmers decided to measure how much methane is emitted from grazing cows, and they went about it the way you'd imagine a 10-year-old would do it: by strapping big red balloons to their backs.This Reuters news clip tells it all--except they keep referring to "cow burps" which may a euphemism but is anatomically misleading. I've heard the problem actually originates from the other end of the cow.
Who knows, with our fuel costs going up, maybe all cows will be sporting red balloons someday.