Many of us in the eastern half of the country are experiencing a polar vortex. According to the National Weather Service, a polar vortex is an arctic air mass that pushed far south, plunging the eastern and central United States down to record cold temperatures.
Mandy Edens, director of technical support and emergency management for OSHA, continues this story in MHL's sister publication, EHS Today, offering tips to help outdoor workers protect themselves from injury during the winter.
