In this July 27, 2017 photo, trash lays on the coast of Guanabara bay in Rio de Janeiro, Brazil. Rio organizers promised to clean up polluted Guanabara Bay in their winning bid in 2009. Since the Olympics, the bankrupt state of Rio de Janeiro has ceased major efforts to clean the bay, with the unwelcome stench usually drifting along the highway from the international airport. (AP Photo/Silvia Izquierdo)
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