What over a century of ice data can tell us about the Great Lakes’ future

Michigan researchers have gone back in time to get a picture of how ice cover on the Great Lakes has evolved since the late 19th century.

Using historical temperature records from weather stations around the region, researchers improved their understanding of where ice might have formed and for how long it lasted — spanning the last 120 years.

Their findings were published in the journal Scientific Data last month. Researchers said this new data record would deepen understanding...