China did not move mountains to host the 2022 Winter Olympics. But it flooded a dried riverbed, diverted water from a key reservoir that supplies Beijing and resettled hundreds of farmers and their families, all to feed one of the most extensive snow-making operations in the history of the Games.

This is what happens when the International Olympic Committee decides to bring the Winter Games to a place almost completely lacking in one of the main ingredients for winter sports: snow. What¡¯s more, Beijing and its nearby mountains did not have that much water to make the artificial kind, either.

Machine-made snow has played a major role in winter sports for decades, even in snowier places like Norway, Switzerland and Colorado. In Beijing¡¯s version of the Winter Games, the competitions that began this weekend will for the first time take place almost entirely on artificial snow, necessitating an Olympic snow-making and water-management operation of enormous scale, and foreshadowing the reality of snow sports everywhere as the planet warms.