Of course, *some* of us still aren't convinced that there *is* global warming...
Amelia, whether human activity is increasing global warming is not a matter of conservative ideology. We can make sure that the science that explores and determines that is not junk science driven by brainwashed idiots, but the answer is not ideological in any other sense.
The question is as FreeTheHostages has stated, If human activity has increased global warming, what is the most practical approach to this situation? Practicality within a framework of human freedom is the approach I would vote for.
I think it would be a big mistake to make this a conservative touchstone issue, like abortion is.