I thought that was what I was saying -- that there are a lot of claims that, when taken as a whole, point to the conclusion that global warming is happening. B

I thought that was what I was saying -- that there are a lot of claims that, when taken as a whole, point to the conclusion that global warming is happening. But I admit that I'm biased -- I think that basic physical arguments will tell you that it must be happening. We can argue over to what exact degree, though.