I myself think that the increase in global temperatures are a caused by a combination of things, from cow farts to increased sun activity. To say that just one thing is at fault is not science.

"I drank scotch and water and got drunk. I drank bourbon and water and got drunk. I drank rye and water and got drunk. So I gave up water." It might be logic, but it's not science.

Actually, I hope that there IS global warming. I'd love to see the blue Pacific waves lapping gently at the beach surrounding Pocatello.