RIO DE JANEIRO, BRAZIL - JULY 29: A boy looks for items to recycle along the polluted Cunha canal which flows into the notoriously polluted Guanabara Bay, site of sailing events for the Rio 2016 Olympic Games, on July 29, 2015 in Rio de Janeiro, Brazil. The Rio government promised to clean 80 percent of pollution and waste from the bay in time for the games but admits that goal now is unlikely to be reached. August 5 marks the one-year mark to the start of the Rio 2016 Olympic Games. (Photo by Mario Tama/Getty Images)
