Environmentalism

ˌɛn.vɪˈrɒn.mən.təl.ɪ.zəm

Synonyms

  • conservationism
  • ecologism
  • green movement
  • sustainability advocacy

Slang Meanings

Tree-hugger
People often call environmental activists tree-huggers as a lighthearted jest.
Greenie
The greenie organized a rally to promote renewable energy sources.