My data on the 1 degree thing? I don't have a link for you, sorry. It was some television show on the subject, on TLC or The Weather Channel or something like that.

And really, it *doesnt* matter.

Cavemen lived in the ice ages without modern equipment, we can live in a warmer climate w/ our modern equipment, or colder for that matter.

It's really a moot point, not to mention, unproven to be influenced in any major manner by humans.