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

Our world faces a true planetary emergency. I know the phrase sounds shrill, and I know it's a challenge to the moral imagination.

We don't have to sacrifice a strong economy for a healthy environment.

We won't have a society if we destroy the environment.

You may be able to fool the voters, but not the atmosphere.

Never doubt that a small group of thoughtful, committed citizens can change the world indeed, it's the only thing that ever has.

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

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

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.

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