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lake michigan kayaker

A kayaker with her dog on Lake Michigan in Chicago.

Shafkat Anowar

Great Lakes water could become a hot commodity

The Great Lakes make up about a fifth of the world’s supply of surface freshwater.

But that water is under the threat of commercialization.

Dave Dempsey, a senior advisor for the environmental group FLOW and author of the book “Great Lakes for Sale,” talks about what’s at stake.

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