I did not become a vegetarian for my health, I did it for the health of the chickens.

I have a private plane. But I fly commercial when I go to environmental conferences.

Not all is doom and gloom. We are beginning to understand the natural world and are gaining a reverence for life - all life.

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

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

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

Local innovation and initiative can help us better understand how to protect our environment.

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

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

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