April 22, 1988 - MPR’s Jim Neumann reports on scientific conference being held in Duluth to discuss researching water quality of Lake Superior. Neumann interviews two scientists that are attending conference.
July 25, 1979 - MPR’s Lee Axdahl provides a report on pollution concerns of PCBs (aka - polychlorinated biphenyls) in the Great Lakes. Axdahl tours the Environmental Protection Agency's research ship Crockett as it traverses Lake Superior. Scientists on the vessel are examining the health of the water.