Coast Guard is breaking ice on Lake Superior

It's one of the first signs of spring in Minnesota: It's time to break up the ice in the Duluth harbor. The U.S. Coast Guard is giving Mother Nature a hand in plowing through the ice. A Coast Guard vessel called the Alder is out this week.

Morning Edition host Cathy Wurzer talked with Lt. Commander Kevin Wirth, the Alder's commanding officer.

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