noun. One who advocates for the protection of the biosphere from misuse from human activity through such measures as ecosystem protection, waste reduction and pollution prevention

noun. someone who works to protect the environment from destruction or pollution

""The people at the parks board who had a vision of this way back in the '60s were kind of visionaries, and they were really environmentalists before the term environmentalist was ever used, before it became popular," Coupar told the"

environmentalism  

crusader  meliorist  reformer  reformist  social reformer  

Carson  barbara ward  baroness jackson of lodsworth  green  rachel carson  

experimentalist  fundamentalist  instrumentalist  

activist  biologists  blogger  businessman  co-founder  

antipoisoner  greenbody  greenie  treehugger