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

When we realize we can make a buck cleaning up the environment, it will be done!

People blame their environment. There is only one person to blame - and only one - themselves.

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

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.

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

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

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

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

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