Ecotage
Ecotage ( EE-kə-TAHZH), also called eco-sabotage or monkeywrenching, is sabotage carried out for environmental reasons. The term covers a wide range of direct-action tactics, including tree spiking, the disabling of construction or logging equipment, arson of buildings associated with environmentally damaging industries, deflation of tyres on sport utility vehicles, and the closing of valves on oil pipelines.