The environment is everything that isn't me.

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

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

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

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

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

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

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

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