Wang Feiteng has spent much of his career studying China's glaciers, but more recently, his work has involved a different kind of ice formation. Wang and his Olympic snow service team are in charge of the artificial snow for the 2022 Beijing Winter Olympics. As global snow coverage declines due to climate change, more winter sports events are adopting artificial snow, and a recent study concluded that only one of the previous 21 Winter Olympics host cities would have the right climate conditions to host the games again by century's end. The Olympic snow service team has spent the past four years learning to make snow good enough for world-class sporting events. Since last November, they have loaded cannon-like snowmaking machines which shoot out ice crystals and water droplets that combine to form snow when it lands on the ground.