noun /ˌiːkəʊdɪˈfɛns/
Collectively, actions intended to disrupt human activities perceived to be damaging to the environment, typically including civil disobedience and illegal sabotage.
⁽¹⁾ Ecodefence is a provocative call to those deeply concerned with the need for immediate protection of the limited wilderness areas remaining in Canada and the U.S.
Wikipedia foundation.