Sabotage with an ecological motive; terrorism carried out against businesses and institutions which are considered to be causing unnecessary…

(a) the action of causing (large-scale) environmental damage, esp. when occurring as a consequence of industrial or state-sanctioned activity; (b)…

The sabotage of industrial sites, equipment, etc., as a form of environmentalist protest.

actions, typically involving sabotage or civil disobedience, undertaken with the aim of protecting the environment from perceived threats; = ecotage…

= ecotage, n.