There are many different kinds of radioactive waste and each has its own half-life so, just to be on the safe side and to simplify matters, I base my calculations on the worst one and that's plutonium.

What we are finding out now is that there are not only limits to growth but also to technology and that we cannot allow technology to go on without public consent.

Is the minor convenience of allowing the present generation the luxury of doubling its energy consumption every 10 years worth the major hazard of exposing the next 20,000 generations to this lethal waste?

Keep your rivers flowing as they will, and you will continue to know the most important of all freedoms-the boundless scope of the human mind to contemplate wonders, and to begin to understand their meaning.

We need the sea. We need a place to stand and touch and listen - to feel the pusle of the world as the surf rolls in.

People have alleged that I have inspired many young people over the years, but I say, it was just the opposite.

If I could go back to a point in history to try to get things to come out differently, I would go back and tell moses to go up the mountain again and get the other tablet. Because the Ten Commandments just tell us what we are supped to do with one another, not a word about our relationship to the earth. Genesis starts with these commands: multiply, replenish the earth, and subdue it. We have multiplied very well, we have replenished our populations very well, we have subdued it all too well, and we don't have any other instruction.