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

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.

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

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

The environment is everything that isn't me.

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.

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

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