We should be moving vigorously towards renewable energy. The technology of which is right here right now.

There's something really happening and really moving, and it's exciting and it makes me very optimistic because it is going to be the engine for how we really combat climate change. Which is strong communities.

We are letting the extractive energy industries turn the world inside out.

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.

Every single dollar spent lobbying a legislator on behalf of oil and gas is a toxic dollar that undermines public health and safety laws that protect Americans. That's contamination of the political system.

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.

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