It takes just 60 seconds to get frostbite in Chicago's polar vortex
from The Daily Beast
For much of the country, simply stepping outside right now can result in frostbite. Temperatures are plunging, with highs that read like extreme lows on the worst winter days. The deep freeze is the perfect setting for frostbite. Public health officials have declared emergencies, urging residents to stay indoors and not venture out for fear of frostbite.
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