We learned that economic growth and environmental protection can and should go hand in hand.

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

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

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

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

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.

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.

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.