I have to have faith that we're going to succeed in transforming where we get our energy from. The big worry is whether or not we're going to do it before it's too late. And I think nobody knows the answer to that.

I really hate to be Debbie Downer right now, because everyone would love to say, "Yeah, we're finally doing something on climate!

They're a lot of great scientists and their mission is to protect people. It's the Environmental Protection Agency, but it's really a people protection agency. And they're out there trying to do their job and do the science.

We're not living in a society that science actually dominates the conversation. We're living in a situation where some science is allowed and a lot of it's about policy.

The aquifer [is] the water table people need to keep secure. Nature has this incredible system of water purification under the ground. Ground water is much better to drink than surface water because it filters out the bacteria that can cause all sorts of problems.

What we've got is the wholesale embrace of fracking domestically, internationally and for export. And this couldn't be further from what we really need to do to address climate change.

There are regulations all over the spectrum that have to be done to the existing situation right now. But the only policy that makes sense is a nationwide moratorium: no new fracking, no new fracked wells.