(edit this to add more) One of the most famous Filipino environmentalists is Von Hernandez.
The Filipino national,Dr. Prescillano Zamora was a Rockefeller Foundation member at Cornell University and is recognized for his work as a botanist and environmentalist.
Martin Litton - environmentalist - was born in 1917.
Environmentalist Agrarian Party was created in 1991.
Richard Fuller - environmentalist - was born in 1960.
Jean Harris - environmentalist - was born in 1922.
Michael Bailey - environmentalist - was born in 1954.
Anil Agarwal - environmentalist - was born in 1947.
Anil Agarwal - environmentalist - died in 2002.
Dave Currey - environmentalist - was born in 1953.
John Francis - environmentalist - was born in 1946.
Tom Cotter - environmentalist - was born in 1972.