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

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.

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.

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

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

We don't have to sacrifice a strong economy for a healthy environment.

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

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

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