File is an audio reel containing an episode of Earth Action, a radio program broadcast on CKDU radio 88.1. The episode features a variety of topics including PCBs (a chemical coolant, lubricant, and insulator) "Greenwaves", and a Canadian Press article on controversy over a PCB shipment to Wales. The episode aired on August 10, 1989, and was rebroadcasted on August 14, 1989 on The Evening Affair, CKDU's evening public affairs radio program.