"But what can I expect from a bunch who still thinks that the US should have stayed in Vietnam and that George W Bush is a decent President?"

"Your problem is painting everyone with the same brush."

Painting everyone he disagrees with as the same is the best argument he has got, even though it isn't any good.

No doubt the the world has warmed up a tiny bit over the last century, just like it has been doing for the last few thousand years. Where the doubt exists is the cause. Some scientists want to put the blame on humanity, while other want to put the blame on natural causes. Either way, it is natural causes. Since man is a part of nature, if he is the fault it is still a function of nature. The neat thing is that nothing man can do could destroy the planet. It will be here long after he is gone.