AdvertisementDeep Freeze Puts Strain On Midwest Gas And Electricity GridsJanuary 31, 2019Matthew S. SchwartzfacebookEmailA man pushes a stroller with groceries as flurries swirl around on Woodward Avenue in Detroit on Monday. Millions of Michigan residents have been asked to turn their thermostats down to conserve energy during the Polar Vortex. (TNS via Getty Images)