Very few people on earth ever get to say: 'I am doing, right now, the most important thing I could possibly be doing.' If you'll join this fight that's what you'll get to say

The real tight interface is between the book and the reader-the world of the book is plugged right into your brain, never mind the [virtual reality] bodysuit.

The religious environmental movement is potentially key to dealing with the greatest problem humans have ever faced, and it has never been captured with more breadth and force than in RENEWAL. I hope this movie is screened in church basements and synagogue social halls across the country, and that it moves many more people of faith off the fence and into action.

It's our own throat that we are cutting in the end along with everyone else's. We need to be exercising precisely the kind of leadership that might allow us to nudge China and India, say, onto different energy trajectories, in order to improve our own chances of surviving this century.

Winning slowly is another way of losing. Americans are screwing up our health care system again right now. That's going to cause grave trouble for people over the next five, 10 years. There are going to be lots of people who die, lots of people who are sick. It's going to be horrible. But 10 years from now it will not be harder to solve the problem because you ignored it for those 10 years. With climate change, that's not true. As each year passes, we move past certain physical tipping points that make it impossible to recover large parts of the world that we have known.

Sometimes, I, anyway, get tired of playing defence, and like to play offence.

In the last two years 24 countries have set new all-time temperature records. We've seen flooding on an epic scale in every continent .