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Rio De Janeiro, Brazil - An abandoned drainage pipe sits on the edge of polluted Guanabara Bay in Rio de Janeiro, Brazil. The city is taking on a number of infrastructure projects and cleaning up Guanabara Bay, site of Olympic sailing events, in time for the Rio 2016 Olympic Games. (Photo by Mario Tama/Getty Images)
© Secretaria de Estado do Ambiente do Rio
http://www.rj.gov.br