Atmospheric science
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)
EXPLAINER: Olympics show complexity of sustainability claims

By Candice Choi And Kelvin Chan Feb. 10, 2022 10:35 PM EST

France's Jeremy Flores rides a wave during a training session at the 2020 Summer Olympics, Friday, July 23, 2021, at Tsurigasaki beach in Ichinomiya, Japan. (AP Photo/Francisco Seco)
Surfing science: Dependent on weather, defined by the ocean

By Sally Ho Jul. 24, 2021 05:31 AM EDT