The environment is everything that isn't me.

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.

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

It seems that every time mankind is given a lot of energy, we go out and wreck something with it.

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

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

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

Not all is doom and gloom. We are beginning to understand the natural world and are gaining a reverence for life - all life.

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