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
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from BBC News - World https://bbc.in/2RsdKSK
via IFTTT
Polar vortex: Fire used to melt ice on Chicago train tracks
![Polar vortex: Fire used to melt ice on Chicago train tracks]()
Reviewed by Alan Walker
on
03:32
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