Is it so that Cow farts not good for environment?

Hello, and welcome to Mylot. As it happens, I know quite a bit about methane, as I fart quite a lot myself, and my husband say's I'm a one woman threat to the environment! I actually have a book about farting which someone bought me as a present. Farts contain 5 gasses - Nitrogen, Hydrogen, Carbon Dioxide, Methane and Oxygen. Methane is produced by the decomposition of organic matter, so anything that rots in the fields is producing methane, not just flatulent cows and people. Cow farts may smell toxic, though, as it's like a human fart only magnified, as cows are total vegetarians and much bigger than humans. Methane is only a real threat if you try to light it, as it's highly inflammable and could cause a forest fire. So, however tempting it may be, never try to light a cow's fart - or anyone else's, for that matter!