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

The only way forward, if we are going to improve the quality of the environment, is to get everybody involved.

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

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

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.

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

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

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

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

The environment is everything that isn't me.