Clive Crook makes a good point:

My point is this. The awesome obtuseness of the administration on the issue has created a falsely confident and passionate opposing consensus. Attitudes on that side can be just as tyrannical as they are within the White House. In both camps, the view is: You are either with us or against us — and if you’re against us, by the way, you’re an idiot. Focused on opposing Bush, the global-warming consensus has no appetite for complications and doubts of any sort, about how big a problem this is going to be, or about the best ways of addressing it, even though some of those ways might be immensely expensive.