A women wearing a mask to protect from extreme smog visits the Tiananmen Gate in Beijing December 8, 2015 as China's capital issues its first ever "red alert" for pollution. (Photo by Damir Sagolj/Reuters)

A Chinese man wears a mask to protect against pollution as he waits at a red light while commuting to work in heavy smog on December 8, 2015 in Beijing, China. The Beijing government issued a 'red alert' for the first time since new standards were introduced earlier this year as the city and many parts of northern China were shrouded in heavy pollution. Levels of PM 2.5, considered the most hazardous, crossed 400 units in Beijing, lower than last week, but still nearly 20 times the acceptable standard set by the World Health Organization. The governments of more than 190 countries are meeting in Paris to set targets on reducing carbon emissions in an attempt to forge a new global agreement on climate change. (Photo by Kevin Frayer/Getty Images)

Tourists walk above a tea plantation in Enshi, Hubei province, December 27, 2015. (Photo by Reuters/Stringer)

Giant pandas play in the snow at the Shenshuping Base of China Conservation and Research Center for the Giant Panda on January 13, 2022 in Aba Tibetan and Qiang Autonomous Prefecture, Sichuan Province of China. (Photo by Chen Xianlin/VCG via Getty Images)

A man walks with a Cyberdog, produced by Chinese tech company Xiaomi, on February 19, 2022 in Beijing, China.The quadruped robots, often owned by tech and robotic enthusiasts, do not have a specific purpose so far, but the open source nature of the robots could make them suitable for several applications in the future. (Photo by Andrea Verdelli/Getty Images)

Primary school students attend an emergency evacuation drill on China's national day for disaster prevention and relief on May 12, 2022 in Hefei, Anhui Province of China. China's national day for disaster prevention and relief falls on May 12 every year. (Photo by Ge Qingzhao/VCG via Getty Images)

A worker shows crayfish during an event celebrating the harvest season of crayfish in Xuyi County of Huai'an, east China's Jiangsu Province on May 18, 2022. Crayfish is one of the renowned specialties in Xuyi County. (Photo by Li Bo/Xinhua/Alamy Live News)

A resident walks on a flooded street after heavy rains in Shaoguan in China's southern Guangdong province on June 21, 2022. (Photo by AFP Photo/China Stringer Network)