The most extreme form of environmentalism. Even worse than socialism. Environ-mentalists believe that us human beings could destroy the Earth just by being ourselves.
Environ-mentalists are for vegetarianism, mass depopulation, and (severely) reduced standards of living.
The sheer craziness of environ-mentalism leads many people to believe that the Earth is not worth protecting or even needs protecting. This is untrue. The Earth is our most precious resource, and we should treat it carefully, though not as carefully as the enviro-mentalists say we should.
Timmy: *runs around vandalizing SUVS*
Greg: What's he doing?
Jake: He must believe in environ-mentalism