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.

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.

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

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.

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.

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.