Polar vortex: Fire used to melt ice on Chicago train tracks

Flames from gas-fed heaters stop snow and ice from clogging up the track at railway intersections.

from BBC News - World https://bbc.in/2RsdKSK

By YULIYA PARSHINA-KOTTAS, KARTHIK PATANJALI, JEREMY WHITE, BENJAMIN WILHELM and EVAN GROTHJAN from NYT Science https://nyti.ms/2B9tBka

The Jerusalem event was the first since the election of a hardline government with homophobic ministers. from BBC News - World https://ift.tt/qOnN6vP

By BY SUSAN E. RICE from NYT Opinion https://ift.tt/2VMHYFJ

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