September 9, 2016 - MPR’s Dan Kraker investigates the warming waters of Lake Superior. In late August 2016, the average surface water temperature for the entire lake hit 68 and a half degrees (the second highest ever recorded). In Lake Superior, researchers at the University of Minnesota Duluth have found that summer surface water temperatures have increased by 5 degrees over the past 30 years.
November 20, 2013 - MPR’s Dan Kraker reports that after more than a decade of falling water levels, Lake Superior is on the upswing. For 14 years, water levels in Lake Superior, the world's largest freshwater lake, remained below their long-term average, the longest stretch of below-average levels in recorded history. The big lake reached its all-time low in 2007.