Sean at Everything I Know Is Wrong has a top-flight post on global warming.
Let me put it more directly: global warming may or may not be happening -- anyone who tells you that they know for certain, one way or the other, is lying to you. The best, most accurate statement that can be made about global warming is, "we don't know, and we don't have any way to tell -- the world is too big."Sean explains much in a very few words. If global warming bores you but you think you ought to read something about it every once in a while just to keep up, read Sean's post here. (If global warming doesn't bore you, click here.)