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.

Natural gas is a bridge fuel. But it's not a bridge - it's a gangplank. It's either a bridge in space or a bridge in time. The bridge in time we don't need. We have renewable technology right now.

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.

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 you frack a well, you're exploding methane up into the atmosphere. So, Barack Obama, by supporting natural gas, and also talking about climate change is literally burning his own inaugural address. And he's doing it with natural gas.

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.

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.