Climate change is the sine qua non of continued civilization. We either solve this, or it's lights out. Turning into a collective like that is so much more aligned with how humans live and think and change.

I think 99% of climate scientists would agree that we need to reduce emissions as quickly as possible, and then begin removing greenhouse gasses and carbon from the air. And if we don't do that we are looking at some range of catastrophe.

What we accomplished during World War Two is just amazing. We turned our country upside down. African Americans were demanding to be given combat missions. 10% of Americans moved in order to relocate for a war job. We as a country accomplished this heroic, nearly miraculous thing, and we have this legacy of policies and agency - how did they do it? How did they fund it? How did they organize it? It is actually an example that we can borrow from very productively to guide us.

With climate change, of course there are things to grieve. I certainly grieved that the vision that I had for my life, that I would be a clinical psychologist and write books and have a family, that that was not going to happen, because if the world is collapsing around you, it just doesn't seem that appealing anymore.

I argue that I don't think it's a moral position to say that civilization is going to collapse, and that's okay. Because that would cause the deaths of billions of people. It's certainly not something I'm willing to accept.

Online petitions are built around getting as many signatures as possible. But the experience of taking them and forgetting about them degrades the importance.

Climate change has been associated so much with a peaceful mentality - obviously peace and love are good, but we need to think about climate as a threat to survival.