PFOS,
I realize that we (humans) have had some effect on our environment, and anyone who says otherwise is just fooling themselves, HOWEVER, having said that, IMNSHO, there is not one shred of evidence to support AGW.
If you'd like, why not start a thread on it, and we'll discuss it in the open Forum. While I'm sure that there will be some (mainly the ones on my Ignore list) who will jump in and resort to the usual personal attacks, I'm sure that you and I can discuss it like adults. That way maybe we'll each learn something that we're not aware of that might enrich our knowledge on the subject.