Mr. Ames was an avid environmentalist and nature photographer.

Go to China and come back an avid environmentalist concerned about the earth's population growth, air pollution, water, waste disposal and disease.

He is an avid environmentalist.

Gum is also an avid environmentalist.

An avid environmentalist would never be happy at a company that doesn't even recycle its printer paper.

Redford is an avid environmentalist and is a trustee of the Natural Resources Defense Council.

Outside of his academic work, Putney was an avid environmentalist.

An avid environmentalist, the professor was appointed so in 1960.

Rice is an avid environmentalist and advocate for families affected by domestic violence.

They are avid environmentalists and support activist writing as well as good scholarly stuff.