Bill Clinton: “All Americans can be proud of the tremendous progress we've made since the first Earth Day 30 years ago.”

Damn it, what we have in common matters more. We cannot throw the legacy of this country away.

I don't think any person with a straight face can tell you that Katrina was caused by global warming. But what we do know, what the evidence shows, is that there is an increase in the number and severity of bad weather events all across…

It was too late for a primary.

Diverse groups make better decisions than homogenous ones do.