Growing cities, overuse of fertilizers and factory wastewater have degraded China's water supplies to the extent that half the nation's rivers and lakes are severely polluted. China aims to spend $850 billion to improve filthy water supplies over the next decade, but even such huge outlays may do little to reverse damage caused by decades of pollution and overuse in Beijing's push for rapid economic growth. Photo: Fishermen row a boat in the algae-filled Chaohu Lake in Hefei, Anhui province, June 19, 2009. (Photo by Jianan Yu/Reuters)

Fans dressed as Darth Vader and Chewbacca take a boat trip to the Skelligs on May 4, 2018 in Portmagee, Ireland. The first ever Star Wars festival is taking place against the backdrop of the famous Skellig Michael island which was used extensively in Episode VII and Episode VIII of the popular science fiction saga. The small fishing village of Portmagee, which is closest to the location, has seen a boom in tourism following the latest films. The vilage will host a Star Wars drive-in and a Star Wars themed Irish dancing competition over the weekend. (Photo by Charles McQuillan/Getty Images)

A model poses in front of phone boxes for a photographer in London, United Kingdom on Friday, October 1, 2021. (Photo by Frank Augstein/AP Photo)

People in costume as a Minecraft bee (left) and Crying Child from Fright Night at Freddy's 4 (right) at the Sheffield Anime & Gaming Con at the Mercure Sheffield in London on Sunday, September 17, 2023. (Photo by Danny Lawson/PA Images via Getty Images)

A man carrying a sailfish walks through Hamarweyne district in South Mogadishu on March 25, 2015. (Photo by Carl De Souza/AFP Photo)

Tyra Banks prepares to pose as she arrives at the iHeartRadio MuchMusic Video Awards (MMVA) in Toronto, Canada, August 26, 2018. (Photo by Mark Blinch/Reuters)

Adrian Reyes, representing Canada, prepares backstage before competing in the Miss International Queen pageant on June 24, 2023 in Pattaya, Thailand. Thailand hosts Miss International Queen, the largest and most prestigious international transgender beauty pageant. The pageant, held annually in Pattaya, Thailand is held takes place during Pride month. Throughout Thailand, Thai LGBTQ activists have held Pride events calling for equality and pressuring the incoming government to move forward with legislation that would allow marriage for all. (Photo by Lauren DeCicca/Getty Images)

Catherine Hollis of Chester, Pa., and Izzy Weintraub of Atlantic City eat Cherrystone clams at Atlantic City's annual clam-eating contest September 16, 1946. They finished 96 and 66 clams respectively in 20 minutes. (Photo by Sam Myers/AP Photo)