Star Tribune: In 2005, a ship called the Bavaria arrived in Duluth-Superior from Europe with a visually stunning cargo the gritty taconite and coal port had never seen: gargantuan yet somehow slender blades, hubs and shafts meant for towering wind turbines. Since then, America’s increasing embrace of wind power has brought the port a windfall, with shipments surging to make the head of the Great Lakes a major funnel for turbines destined for the Upper Midwest and parts of Canada. Jason Paulson, …