EXPLAINER: Olympics show complexity of sustainability claims

FILE - The Olympic logo is seen on a hillside at Zhangjiakou Genting Snow Park in Zhangjiakou in northern China's Hebei Province, Saturday, Nov. 27, 2021. (AP Photo/Mark Schiefelbein, File)

FILE - Workers gesture near the Zhangjiakou National Ski Jumping Center under construction for the Beijing 2022 Winter Olympics in Zhangjiakou in northwestern China's Hebei province on on Dec. 16, 2020. (AP Photo/Ng Han Guan, File)

FILE - Workers prepare the halfpipe course at Genting Snow Park before the women's halfpipe finals at the 2022 Winter Olympics, Feb. 10, 2022, in Zhangjiakou, China. (AP Photo/Kiichiro Sato, File)

FILE - A skier kicks up snow during the men's 15km + 15km skiathlon cross-country skiing competition at the 2022 Winter Olympics, Feb. 6, 2022, in Zhangjiakou, China. (AP Photo/Alessandra Tarantino, File)

FILE - Workers arrive at the sunrise before the women's slopestyle finals at the 2022 Winter Olympics, Sunday, Feb. 6, 2022, in Zhangjiakou, China. (AP Photo/Kiichiro Sato, File)

FILE - A person works at a snow making machine on a hill overlooking cross-country skiing practice before the 2022 Winter Olympics, Feb. 2, 2022, in Zhangjiakou, China. (AP Photo/Aaron Favila, File)