Without a movement pressing for change, there's little hope. We've got to work the political system to make this happen fast. The physics and chemistry are daunting. The resources on the other side are very large.

Climate change is a huge problem, an almost insoluble problem, for two reasons. One is the habits of the West in terms of consumption. The other is the incredible iniquity between poor countries and rich countries on this planet.

You can have a healthy fossil-fuel balance sheet, or a relatively healthy planet

When we work all over the planet, it's mostly poor and black and brown and young people, because that's mostly what the world [environmentalism] is.

We've been given a warning by science, and a wake-up call by nature; it is up to us now to heed them.

There's no happy ending where we prevent climate change any more. Now the question is, is it going to be a miserable century or an impossible one, and what comes after that.

TV is sometimes accused of encouraging fantasies. Its real problem, though, is that it encourages-enforces, almost-a brute realism. It is anti-Utopian in the extreme. We're discouraged from thinking that, except for a few new products, there might be a better way of doing things.