The point is that we don't
have all the facts yet, may of the "facts" we do have are under
scientific contention, and it takes time to sort all the wheat from the chaff, and grow more wheat. I'm willing to entertain the idea that we may be affecting our environment, and to take modest steps against that possibility, but at this stage I tend to stop listening when I hear claims of absolute knowledge on the matter — there's too much we're still finding out for me to give those much credence. And I'm
certainly not prepared to dismantle our civilization (as many of the more rabid Pro-GW sorts would like) based on what we know presently — that seems like a pretty ... ill-considered move to me at this juncture.