A man wears a gas mask as he holds a bouquet of flowers, following the outbreak of the novel coronavirus on Valentine’s Day in Hong Kong, China on February 14, 2020. (Photo by Tyrone Siu/Reuters)

Giant pandas are playing and foraging inside the Shenshuping base of China Conservation and Research Center for the Giant Panda in Wolong National Nature Reserve on November 3, 2021 in Aba Tibetan and Qiang Autonomous Prefecture, Sichuan Province of China. (Photo by An Yuan/China News Service via Getty Images)

A man standing on the first cables during the construction of the Golden Gate Bridge with the Presidio and San Francisco in the background, San Francisco, California, 1935. (Photo by Underwood Archives/Getty Images)

Frontier soldiers run as a storm surge hits the coastline under the influence of Typhoon Fitow in Wenling, Zhejiang province, October 6, 2013. China issued a red alert ahead of Typhoon Fitow, which is expected to lash east of the country on Sunday evening. (Photo by Reuters/China Daily)

People walk during a polluted day in Shenyang, Liaoning province, March 31, 2016. (Photo by Reuters/Stringer)

A model walks down the runway at the 13th China International Young Fashion Designers Contest during China Fashion Week on March 25, 2005 in Beijing, China. (Photo by China Photos/Getty Images)

Employees work on a crane above an E-70 wind turbine manufactured by German company Enercon for La Compagnie du Vent during its installation at a wind farm in Meneslies, Picardie region, France July 31, 2014. (Photo by Benoit Tessier/Reuters)

Filipino boys play basketball at an improvised court hooked on multi-layered tombs at a public cemetery in Navotas, north of Manila, Philippines on Thursday Oct. 31, 2013. Filipinos are expected to flock to cemeteries on November 1 to remember their dead as they observe All Saints Day in this predominantly Roman Catholic country. (Photo by Aaron Favila/AP Photo)