Luckily there's lots of extra beach space around lakes.
Lake Superior has both shrunk and gotten warmer, confounding scientists who can't explain what is happening to the world's largest freshwater lake by surface area and the third largest by volume of water.So, see? When rising coastlines force businesses and residents to flee to drier ground, they can just move into the new land forming around our nation's lakes.
Since 1979, the average water temperature has shot up 4.5 degrees compared to only a 2.7-degree increase in the region's air temperature. Scientists still don't know if climate change is to blame, but recently the lake's surface temperature registered 75, which is as high as anyone has known it to be.
In addition, the lake has shrunk suddenly. That has left children in Sault Ste. Marie, Michigan playing in mud where they played in waist deep water only a few years ago.