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

I think the cost of energy will come down when we make this transition to renewable energy.

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.

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.

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

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

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.

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