ecologism
/ɪˈkɒlədʒɪz(ə)m/noun
1 Biology. The capacity for successful adaptation to changes in environmental conditions; (also) a character that can alter, or that has altered, as a result of such adaptation. rare (now disused ).
2A philosophy or ideology based on the application of ecological concepts and priorities to political and moral issues.
Origin
Early 20th century; earliest use found in The Botanical Gazette. From ecology + -ism.