The thing that our system is designed to do is keep us alone and isolated in our little consumer bubble. And the most revolutionary act of all might be finding a community of like-minded people where you can talk about these issues and figure out what to do together.

I've always kind of hated films about climate change.

Catastrophic damage from climate-driven extreme weather is now an annual reality. The cost of not dealing with it will be much greater than if we try to pre-empt some of those disaster cleanups by actually investing in the shift now.

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.

Once you feel the desire to engage, think about what you're good at and what you can contribute. It's about breaking down the idea that there are activists and ordinary people.

The United States had eight years of Barack Obama. He made it incredibly clear that he was a right-wing Democrat. He cited Ronald Reagan lovingly in every stump speech for the last six months of the presidential 2008 campaign. And he made it clear that he was going to be a business-friendly Democratic president, and that he was not going to rock the neoliberal boat. And he didn't.

I'm really changed by my research. This book ["This Changes Everything" ]is very different from what I set out to write.