We're one of the most highly regulated industries, and we have to pay attention to what government is doing.

Woman should have the choice whether to have an abortion or not, but I like what Bill Clinton said: It ought to be safe and rare. You don't want to offend people with it. You try and do as much as you can to let people be different, but also to try and protect them from things that they think are bad. And it's worth all of us giving a little.

Overall, The Population Bomb was probably too optimistic. I was writing about climate change - Anne and I actually wrote the book. We discussed whether or not you'd have to take a gondola to the Empire State Building, and that sort of thing, but we didn't know at the time whether the climate change would be in the direction of heating or cooling. We just didn't know enough about it.

People have to decide, first of all, how they'd like to live, and how secure they want to be from disaster. After that, scientists can help determine what would be necessary to achieve that.

The National Academy of Sciences would be unable to give a unanimous decision if asked whether the sun would rise tomorrow.

Anyone who opposes methods to control the birth rate, is automatically voting in favour having the death rate go up.

I would take even money that England will not exist in the year 2000.