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

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

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

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

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

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

The environment is everything that isn't me.

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

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

If we do not permit the earth to produce beauty and joy, it will in the end not produce food, either.