How does cows pollute earth?

Answer 1

That's comparing apples to carrots. Cows don't produce nearly as much carbon dioxide as cars do, so no. Methane's a different story, but cars don't produce methane, so answering this question is out of the question since the question has no merit to be able to be answered.

Answer 2

Because of their gas outlet into the atmosphere, some farmers now have to pay a "fart tax" because of this. Its kind of like a carbon footprint...