Hugh Pickens DOT Com writes: Duncan Geere reports at The Verge that Russian resort as Sochi, on the eastern shore of the Black Sea, is humid and subtropical with temperatures averaging about 52 degrees Fahrenheit in the winter, and 75 degrees in the summer. "There is almost no snow here — at the moment it's raining," says Olga Mironova, a local resident. It's estimated that the cost of staging the Olympics in Sochi has been greater than the previous three Winter Games combined — ballooning to a whopping $51 billion including the cost of implementing an extensive system of safeguards to ensure there'll be sufficient snow in Sochi for the games including the cost of implementing one of the largest snowmaking systems in Europe. The system includes two huge water reservoirs that feed 400 snow cannons installed along the slopes that can generate snow in temperatures of up to 60 degrees fahrenheit. If that snow isn't enough, then the authorities will fall back on 710,000 cubic meters of snow collected during the winters of previous years leading up to the games. To keep it from melting in the region's hot summers, 10 separate stockpiles have been kept packed tight under insulating covers high up in the mountains, safe from the sun's rays. Down in Sochi itself the other half of the games will be held in five indoor arenas that will host figure skating, speed skating, hockey, and curling, and an additional outdoor area will host the opening and closing ceremonies. In each of these indoor arenas, underfloor cooling systems are installed so that the ice stays frozen above it using propylene glycol, which doesn't freeze until temperatures reach 8.6 F. Climatologists predict that even under a best-case scenario, almost half the venues that have hosted the Winter Olympics over the last century would be unable to do so by 2080 without resorting to extensive and expensive artificial snowmaking techniques. Renowned sites, including Squaw Valley in the U.S. Garmisch-Partenkirchen in Germany, Vancouver in Canada and Sochi in Russia will probably no longer have climates suitable to reliably host the games by the middle of the 21st century. "It will be more problematic than ever to find suitable and snow-safe places," says Hans Linderholm, a climatologist at the University of Gothenburg. "It's likely the use of indoor arenas will become more common in the future. Then the Winter Games can be held almost anywhere — even Qatar!"