In just one hour. but artificial snow is not new. back in 1980, lake placid was the first olympic games to use the stuff, but the growth and reliance at sochi and pyeongchang showed that this is a growing problem for winter sports and ski resorts alike. snow cannons essentially create artificial snow, and since the 1980s, ski resorts noticed that the snow was coming later and there was less of it and it melted sooner. so to adapt to that, they started to create artificial snow to sustain their business, essentially. so, noise pollution, abstraction of water from natural river systems, vast ene...