Vultures gather to eat waste in Bica beach, on the banks of the Guanabara Bay, with the Sugar Loaf mountain in background, 500 days ahead the Rio 2016 Olympic Games in Rio de Janeiro March 24, 2015. As part of its Olympic bid, Rio promised to clean up 80 percent of the bay for the games. But local government officials have already admitted that a cleanup by 2016 is not achievable. Despite millions of dollars of investment over the years, the bay still stinks of sewage. Sailors who visited the city for test events complained of a floating sofa and a dead dog in the water. (Photo by Ricardo Moraes/Reuters)

A sofa floats in the polluted waters of Jacarepagua Lagoon, during a press tour in Rio de Janeiro, March 9, 2015. A press tour was organised by biologist Mario Moscatelli, to call attention to pollution on the waters of the lagoons which surround the Rio 2016 Olympic Park. (Photo by Ricardo Moraes/Reuters)

In this Monday, October 8, 2018 photo, Colombia's BMX freestyle athlete Sebastian Martinez practices at the Urban Park, at the Youth Olympic Games in Buenos Aires, Argentina. (Photo by Ian Walton/OIS/IOC via AP Photo)

A man impersonating North Korean leader Kim Jong Un gestures as he stands before North Korean cheerleaders attending the Unified Korean ice hockey game against Japan during the Pyeongchang 2018 Winter Olympic Games at the Kwandong Hockey Centre in Gangneung on February 14, 2018. (Photo by Yelim Lee/AFP Photo)

France's Typhaine Solde competes in the women's long jump - T64 finals of the Tokyo 2020 Paralympic Games at the Olympic Stadium in Tokyo on August 28, 2021. (Photo by Kim Price/CSM/Rex Features/Shutterstock)

An Ivorian supporter celebrates after winning at the end of the Africa Cup of Nations (CAN) 2024 final football match between Ivory Coast and Nigeria at Alassane Ouattara Olympic Stadium in Ebimpe, Abidjan on February 11, 2024. (Photo by Sia Kambou/AFP Photo)

Kazakhstan's Nadezhda Dubovitskaya reacts as she competes in the women's high jump qualification of the athletics event at the Paris 2024 Olympic Games at Stade de France in Saint-Denis, north of Paris, on August 2, 2024. (Photo by Andrej Isakovic/AFP Photo)

Sophie Weissenberg, of Germany, grabs her ankle after being injured while warming up for the women's heptathlon 100-meter hurdles at the 2024 Summer Olympics, Thursday, August 8, 2024, in Saint-Denis, France. (Photo by Ashley Landis/AP Photo)