The problem is so severe that trying to say, "First we'll fix the government and then we'll tackle climate change," or, "First we have to figure out alternative systems to capitalism and then we'll tackle climate change," I don't see how those things are possible in the very short term.

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

I used to be a lot more afraid of climate change. Now I spend my time working, planning, trying to move forward.

Psychologically speaking, the rational, healthy response to climate change is to say to oneself, "What can I do about this?" But that question is often answered through individual action.

Taking fear seriously is not easy. A lot of people's response to fear is "Don't worry so much, it's crazy." But some things absolutely deserve our fear, and climate change is first among them.

By looking the other way on climate change we facilitate a collective denial, and we do it for each other.

I think it's very important to invite and encourage people to talk about climate change who have a lay understanding. In general, there is a lot of confusion among climate activists about the role of science, that scientists should be social and political leaders of this movement.