There are substitutes for oil; there is no substitute for fresh water..

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

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

I don't like the idea of teaching religion in schools, and creation is not my thing, but that's a trivial point compared to saving the creation. I'd ….

After The Bomb we developed a fairly good system for moving food around and have avoided the kind of massive famines that attract the media. Although….

There's all of this stuff where we have so much debate over nonsense; it could be cured if we had a better educational system, if we trained people t….

Sometimes I think the Congress feels that if you only decided tomorrow to switch to wind power that in two years we'd be getting 80 percent of our el….

The main thing is, and of course this is a pedant talking, we should start our education on these issues in kindergarten. Instead of saying, "See Spo….

All scientists who've looked at it know we have to phase away from burning fossil fuels. That means we've got to put a lot of effort into alternate e….

You take the huge income that comes with a big gas tax, and you use it to pay off regressive taxes like the FICA [Federal Insurance Contributions Act….

It turns out the population issue is an easier thing to deal with than the consumption issue. Some obvious extremes in consumption we can deal with. ….

So, regarding the time frame, I'm only too willing to admit that my crystal ball, like everybody else's, is cracked. If I could predict precisely, I ….

I'm sort of optimistic about what we could do, but I'm very pessimistic about what we will do. I can't tell you that Al Gore's 10-year plan is imposs….

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….

Your children should have it impressed upon them that their adult life-style will bear very little resemblance to yours and that they should now be a….

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 o….

Most of the scientists I know think civilization is teetering on the brink of a global disaster. They just don't know when it's going to hit. I don't….

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

We've all got to get together and demand something better out of our government and out of each other. We've got a system that's making us working ha….

Historically, things were moving in a pretty good direction until the Reagan presidency. And then it all got reversed. The Mexico City policy was ins….

My first policy move would be to try to get a conversation going in the US about what people stand for and what we really want. Do we want to keep ad….