Find an organization, shoot them an email, call them up, find them on Facebook and say "Hey, I want to volunteer." And that first step could lead to a whole life of engagement. It could be a pretty exciting ride.

I think people are losing that sense of security pretty fast, frankly.

Find an organization, shoot them an email, call them up, find them on Facebook and say "Hey, I want to volunteer." And that first step could lead to a whole life of engagement. It could be a pretty exciting ride.

Film 'This Changes Everything' is not a sad story. It's not a slit-your-wrists climate film. It's a story about people who are making change happen.

We're dealing with a crisis of inequality, of joblessness, of underemployment.

The book and the film [This Changes Everything] fed into each other in ways that were compounding and very exciting. The pain was shared.

So many people are on the front lines of this fossil fuel frenzy. It is infused with a sense of urgency.