Tag Archive: mitten

Mar 16

Of Ice and Mittens, Or, How the Great Lakes Formed

What does a long-gone glacier have to do with Michigan being shaped like a mitten? Pretty much everything. Listen up: Let’s go back about 14,000 years to what’s now the Great Lakes region. Back then, the entire area was covered with a sheet of ice that averaged a half-mile thick, but was up to four …

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Permanent link to this article: http://www.currentcast.org/water-and-climate-change/of-ice-and-mittens-or-how-the-great-lakes-formed/