Bill Gates claim's "Cow Gas" is worse for us and the environment than cars. Ok, I wrote him a month ago and asked him for a challenge. He can spend a night in a locked garage with a cow farting all night, than a locked garage with a car running all night. When it's over, we can discuss which is worse for him. He hasn't responded yet. I want to know where Bill Gates got his Science and Climatologist PH'd from?