Nowadays if you're dependent on a grant - and 99% of them are - you can't make mistakes as you won't get another one if you do.

I have a feeling that climate change may be an issue as severe as a war. It may be necessary to put democracy on hold for a while.

This programme to stop nuclear by 2020 is just crazy. If there were a nuclear war, and humanity were wiped out, the Earth would breathe a sigh of relief.

Evolution is a tightly coupled dance, with life and the material environment as partners. From the dance emerges the entity Gaia.

A billion could live off the earth; 6 billion living as we do is far too many, and you run out of planet in no time.

Our future is like that of the passengers on a small pleasure boat sailing quietly above the Niagara Falls, not knowing that the engines are about to fail.

I don't think we're yet evolved to the point where we're clever enough to handle a complex a situation as climate change. The inertia of humans is so huge that you can't really do anything meaningful.