ipcc relies for studies, relies for evidence from study on environmental pressure groups, so people are beginning to say, hang on, not only is this expensive, but we're not really so sure just what kind of crisis we're dealing with, if any crisis at all. >> i have to bring up a man who leads the u.n. panel. dan, want your reaction to this. in response to critics, the chairman. climate panel, he said this, he's responding to critics now and he is is a co-winner of the nobel peace prize. listen to this, they are people who deny the link between smoking and cancer. people who say that asbestos is as good as talcum powder. i a hope they apply it to their faces every day. this is the chairman. u.n. climate panel, a co-winner with al gore of the nobel peace prize. what do you make of this, dan? >> i make it that he's very angry and upset and he's upset because things were going his way. they thought this was a