Polite conservationists leave no mark save the scars upon the Earth that could have been prevented had they stood their ground.

Yet another proposal would have us rocket the waste into the sun, but, as you're probably aware, about one in ten of our space shots doesn't quite make it out of the earth's gravitational field.

I sort of kept my hand in writing and went to work for the Sierra Club in '52, walked the plank there in '69, founded Friends of the Earth and the League of Conservation Voters after that.

It seems that every time mankind is given a lot of energy, we go out and wreck something with it.

We still need conservationists who will attempt the impossible, achieving it because they aren't aware how impossible it is.

I was actually telling people that - by harnessing the atom - we could enter a new era of unlimited power that would do away with the need to dam our beautiful streams.

Truth and beauty can still win battles. We need more art, more passion, more wit in defense of the Earth.