Wintry mix spreads across Minnesota

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The last time Lake Superior completely froze over was 30 years ago in 1996. Around that time, Lake Superior was consistently at least 75 percent frozen over. Now, 75 percent coverage is rare, only happening about once every four years.

Ice on the Great Lakes, and Lake Superior specifically, is a great way to measure climate for our region. MPR News chief meteorologist Paul Huttner spoke with UMD professor Jay Austin, about what ice coverage can tell us about climate change.

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Ice on the Great Lakes is a great way to measure climate in the region. But ice is becoming more and more rare on Lake Superior; the lake has a 75 percent ice coverage only once every four years. 

What does ice on Lake Superior tell us about climate change?

What does ice on Lake Superior tell us about climate change?

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