The Underground is heating up
June 19, 2017 9:13 AM Subscribe
Over the years, the heat from the trains soaked into the clay to the point where it can no longer absorb any more heat. Tunnels that were a mere 14 degrees Celsius in the 1900s can now have air temperatures as high as 30 degrees Celsius on parts of the tube network.As it's a nice, balmy 31 degrees in London at the moment, have a refreshing article about cooling off the Underground.
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