Frost bite in 5 minutes: Cold hard facts about the polar vortex that has hit the US

January 30, 2019 7:53 AM

CAMBRIDGE (NYTIMES) - The polar vortex is bringing dangerously low temperatures to a wide swath of the Midwest, forcing schools and universities to close and leading the governors of Illinois, Michigan and Wisconsin to declare emergencies.

from
The Straits Times World News