Tourists visit Huangguoshu Waterfall scenic spot in the rain on July 4, 2023 in Anshun, Guizhou Province of China. Huangguoshu Waterfall has entered its high flow season due to sustained rainfalls in summer. (Photo by Qin Gang/VCG via Getty Images)





Visitors on a hot day gather along a stretch of the Jinshanling section of the Great Wall of China, north of Beijing in northern China's Hebei Province, Wednesday, July 5, 2023. (Photo by Mark Schiefelbein/AP Photo)





Visitors walk on a hot day along a stretch of the Jinshanling section of the Great Wall of China, north of Beijing in northern China's Hebei Province, Wednesday, July 5, 2023. (Photo by Mark Schiefelbein/AP Photo)





Visitors gather in the shade on a hot day along a stretch of the Jinshanling section of the Great Wall of China, north of Beijing in northern China's Hebei Province, Wednesday, July 5, 2023. (Photo by Mark Schiefelbein/AP Photo)





A woman sits in the shade on a hot day in a tower along the Jinshaling section of the Great Wall of China, north of Beijing in northern China's Hebei Province, Wednesday, July 5, 2023. (Photo by Mark Schiefelbein/AP Photo)





Visitors on a hot day climb along an uphill stretch of the Jinshanling section of the Great Wall of China, north of Beijing in northern China's Hebei Province, Wednesday, July 5, 2023. (Photo by Mark Schiefelbein/AP Photo)





A woman using an umbrella to shelter from the sun walks past a cooling fan during hot weather conditions in Beijing on July 6, 2023. (Photo by Jade Gao/AFP Photo)





A woman wearing sun protective clothing rides a bike along a street during hot weather conditions in Beijing on July 6, 2023. (Photo by Jade Gao/AFP Photo)





Staff members wearing face masks hold curtains shut before a meeting between Chinese Premier Li Qiang and US Treasury Secretary Janet Yellen at the Great Hall of the People in Beijing on July 7, 2023. (Photo by Mark Schiefelbein/AP Photo)





A general view of people in Shanghai Hongqiao railway station on July 7, 2023. (Photo by Wang Zhao/AFP Photo)





A woman wearing an electric fan and carrying an umbrella visits the Forbidden City on a sweltering day in Beijing, Friday, July 7, 2023. Earth's average temperature set a new unofficial record high on Thursday, the third such milestone in a week that already rated as the hottest on record. (Photo by Andy Wong/AP Photo)





A boy uses a national flag to shield from the sun as visitors line up to enter the Forbidden City on a sweltering day in Beijing, Friday, July 7, 2023. (Photo by Andy Wong/AP Photo)





Children wearing sun hats and carrying an umbrella pose for a souvenir photo near the Forbidden City on a sweltering day in Beijing, Friday, July 7, 2023. (Photo by Andy Wong/AP Photo)





A boy wearing an electric fan eats an ice cream near the Forbidden City on a sweltering day in Beijing, Friday, July 7, 2023. (Photo by Andy Wong/AP Photo)





A traffic police officer drains water on a street during a rainfall in Nantong, in China's eastern Jiangsu province on July 7, 2023. (Photo by AFP Photo/China Stringer Network)





A child holds the hand of a Leju Robotics Co. humanoid robot at the World AI Conference (WAIC) in Shanghai, China, on Friday, July 7, 2023. Chinese artificial intelligence-related stocks, including Cambricon Technologies and Iflytek, gain as a two-day conference centering on China's AI effort backed by influential regulatory agencies kicked off in Shanghai. (Photo by Qilai Shen/Bloomberg)





Leaves of Giant Waterlily float on the water in Nanning, Guangxi Province, China, July 7, 2023. The vein structure is different from the vein structure of common plants, and it is rib shaped, like a spider web, and has great buoyancy. Native to the Amazon River basin in South America, Giant Waterlily is a typical tropical plant with the edges of its leaves curled upward, just like a large emerald jade plate floating on the water. (Photo by Costfoto/NurPhoto via Getty Images)





A general view shows residential buildings in Hong Kong on July 8, 2023. (Photo by May James/AFP Photo)





People are cooling off at a water park in Nanjing, East China's Jiangsu province, on July 8, 2023. (Photo by Costfoto/NurPhoto/Rex Features/Shutterstock)





Members of an honor guard march during a welcoming ceremony for Solomon Islands Prime Minister Manasseh Sogavare at the Great Hall of the People in Beijing, Monday, July 10, 2023. (Photo by Andy Wong/AP Photo)