The weather in Minnesota will head south this week (i.e. very cold ... - 10 to -30 F at night). This causes problems in Lake Superior and the Duluth harbor. Mother nature says it's time to end another shipping season, but the Duluth icebreaker U.S. Coast Guard Cutter Alder says otherwise. Take some time and watch this YouTube video of an icebreaker at work up in the frozen Northland!