In the waters of Lake Superior, just north of Duluth, Minnesota, a group of six swimmers participated in a relay covering 48 miles — without wetsuits. Minnesota Public Radio’s Dan Kraker reported on the story.
Since 1998, the water temperature of Lake Superior has risen by five degrees, making Lake Superior the fastest warming lake on planet Earth.
“The big part of the reason why they did this swim was to raise awareness about just how fast the water temperatures are rising in Lake Superior,” Kraker said.
