It's remarkable to watch the president, with all the weight of his ability to command rhetoric with the bully pulpit behind him, make a clear speech about climate change and why that's so important for us all to focus on. And that is a rather remarkable thing to see. It's enormously powerful.

Sometimes I feel like there isn't enough Prozac in the world to make Environmental Protection Agency people feel better about their jobs. They're going out there, they're trying to protect Americans and then time and time and time again they get their knees cut off at the policy level.

The first line in the first Gasland is: “I’m not a pessimist. I’ve always had a great deal of faith in people that we won’t succumb to frenzy or rage or greed. That we’ll figure out a solution without destroying the things that we love.” I have not lost that sense.

When your science runs into a policy roadblock, all of a sudden the science starts to disappear.

When the natural gas industry was knocking on my door, they were knocking on the door of millions of people. And that became something that Americans really needed to focus on.

The problem is that everywhere the gas drilling industry goes, a trail of water contamination, air pollution, health concerns and betrayal of basic American civic and community values follows.

When you're cornered, there are two things you can do: move or fight.