The Blob in Lake Superior

Living on Earth
The World

Fred Jones of Canadian radio station CBQ reports from Thunder Bay, Ontario on a huge chemical blob that lurks below the surface of Lake Superior. For years, chemicals used to treat lumber have been slowly dripping into Thunder Bay’s harbor, settling to the bottom and creating a “hot spot”  ? a highly toxic area the size of two football fields. Local observers say the failure to clean up the Blob reflects the political and scientific difficulties surrounding the health of the entire lake.

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