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

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

I can find God in nature, in animals, in birds and the environment.

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

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

The environment is everything that isn't me.

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

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

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

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