Based solely on the provided transcript, monkey wrenching is defined as "acts of sabotage" against industrial polluters. The transcript gives examples including sabotaging engines (by dumping sugar in gas tanks), tree spiking, toppling power line towers, and burning heavy machinery.
Dave Foreman, co-founder of Earth First!, wrote a book called Ecodefense, which was a field guide on how to commit acts of sabotage known as monkey wrenching.
This video investigates the unsolved 1990 car bombing of Judy Barry, a radical environmental activist. The video explores conflicting theories, including allegations of FBI incompetence or conspiracy, and examines various suspects and evidence presented throughout the investigation.