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

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

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

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

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.

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

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

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

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