May 12, 2008 - MPR’s Bob Kelleher reports that Lake Superior's low water in 2007’ revealed something disturbing…gaping rusted holes in much of the underwater steel in the Duluth-Superior harbor. The aggressive corrosion, discovered just a couple of years ago, has caused extensive damage below the water line. The cause is still a mystery, but studies have begun to identify some leading suspects.
February 7, 2006 - MPR’s Stephanie Hemphill reports that a team of researchers has been trying to track down possible sources of the bacteria on the beaches of lake Superior in Duluth. What they've found so far is surprising, and it raises a big question about the standard way of testing for beach contamination.