There's no debate about the greenhouse effect, just like there's no debate about gravity. If someone throws a piano off the roof, I don't care what Sarah Palin tells you, get out of the way because it's coming down on your head.

The truth is, we have this idea that late night is about creativity and being cool, but that's not our job. Our job is to get as many people watching the commercials in between our show. That's the reality of it.

I definitely feel pressure to keep slim. I don't want to be the guy who lost weight and gained it all back. But it's hard. Sometimes I'll gorge and gain nine pounds in a weekend somehow, and I get bummed about it.

Sometimes I'll feel like an interview was fine or whatever, and people go, 'Oh, boy, I saw you with so and so last night; that must have been tough.' And then I'm like, 'I guess it was bad. I need to look back at that.'