The laws of Congress and the laws of physics have grown increasingly divergent, and the laws of physics are not likely to yield.

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.

We spend a lot of time playing defence against bad things. So, in the US, one of the focusses has been this huge Keystone Pipeline project, another has been the coal ports on the Pacific Ocean.

It drives me crazy to see so much of this planet's life so casually endangered. The first steps are so easy (drive smaller cars, for instance) that it's very hard to understand why we haven't taken them. But I know that this is the issue our generation will be judged by.

The technology we need most badly is the technology of community, the knowledge about how to cooperate to get things done.

One degree turns out to be enough to really unhinge all sorts of earth's ecosystems.

Delhi is locked in a complete choking smog at the moment - they've had to close schools in one of the world's biggest cities. They have their own reasons for needing to get off fossil fuels fast.