Much of the debate over global warming is predicated on fear, rather than science.

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

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

When we realize we can make a buck cleaning up the environment, it will be done!

Keep close to Nature's heart... and break clear away, once in awhile, and climb a mountain or spend a week in the woods. Wash your spirit clean.

I can find God in nature, in animals, in birds and the environment.

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

If we do not permit the earth to produce beauty and joy, it will in the end not produce food, either.

When we try to pick out anything by itself, we find it hitched to everything else in the universe.

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