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

Local innovation and initiative can help us better understand how to protect our environment.

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

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

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

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

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

I firmly believe that we can have a healthy environment and a sustainable timber industry.

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

Keep close to Nature's heart... and break clear away, once in awhile, and climb a mountain or spend a week in the woods. Wash your spirit clean.