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

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

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

Take a course in good water and air and in the eternal youth of Nature you may renew your own. Go quietly, alone no harm will befall you.

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

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

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

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

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

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