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

Birds are indicators of the environment. If they are in trouble, we know we'll soon be in trouble.

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

People in Slow Food understand that food is an environmental issue.

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.

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.

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

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

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