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Canada's CAN-2 sled takes a turn during a training run for the two-man bobsled at the 2014 Winter Olympics on Feb. 6 in Krasnaya Polyana, Russia.

A typically cold weather sport, bobsled athletes are accustomed to freezing temperatures. However, Sochi's subtropical climate could challenge Olympic track maintenance crews, as temperatures are expected to rise near the end of the Games.

In order to ensure that the ice never melts enough to reveal the concrete base underneath, maintenance crews must spray the track with water after every run and patch problems with slush. The warmer weather could speed up the melting process, putting a lot of pressure on crews to keep the athletes safe.