Beijing and the mountains to its north — where some of the events, including skiing and snowboarding, will be held — are notoriously arid and see very little snowfall in winter. Moreover, temperatures in February could rise below freezing, and there’s a risk of storms that will dust the top layer of snow in sand. As a result, the Beijing games will rely entirely on artificial snow.
As global snow coverage declines due to climate change, more winter sports events are adopting artificial snow. During the 2010 Winter Olympics, host city Vancouver experienced an unusually warm winter that forced organizers to bring in artificial snow. The Games in Russia’s Sochi and South Korea’s Pyeongchang also could not rely on natural snow.