A Tugboat Breaks Up Ice in Chicago

A Tugboat Breaks Up Ice in Chicago

Scott Olson/Getty Images

The tugboat Commissioner breaks up ice in Burnham Harbor near the Loop on January 21, 2014 in Chicago, Illinois. Temperatures in Chicago fell lower than the South Pole this month as freezing weather boosted energy consumption, grounded thousands of flights across the U.S. and disrupted operations at refineries and natural gas production sites.