I will tell you that what gives me a sense of joy is having work to do that justifies pouring every ounce of energy I have into it. That's really a blessing to have in your life. And it gives you energy back when you have the privilege of doing work that makes you feel that way.

Hey, you know what, I've gotta go on that 'Letterman' show. That show is so lame.

It's not unusual to find big political shifts that take place beneath the surface before they're visible above the surface.

Humankind has suddenly entered into a brand new relationship with our planet. Unless we quickly and profoundly change the course of our civilization, we face an immediate and grave danger of destroying the worldwide ecological system that sustains life as we know it.

Mother Nature does not do bailouts.

The planet is in distress and all of the attention is on Paris Hilton.

We are seeing every night on the television news now a nature hike through the Book of Revelation. These climate-related extreme weather events have convinced the vast majority of people that the scientists have been right for a long time. We have to address this.