Harmony with land is like harmony with a friend you cannot cherish his right hand and chop off his left.

I have a private plane. But I fly commercial when I go to environmental conferences.

I did not become a vegetarian for my health, I did it for the health of the chickens.

Unless we keep this planet healthy, everything else is for naught.

No one should be able to enter a wilderness by mechanical means.

By polluting clear water with slime you will never find good drinking water.

Birds are indicators of the environment. If they are in trouble, we know we'll soon be in trouble.

Not all is doom and gloom. We are beginning to understand the natural world and are gaining a reverence for life - all life.

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

I think the cost of energy will come down when we make this transition to renewable energy.