In this May 15, 2014 photo, trash floats on a polluted water channel that flows into the Guanabara Bay in Rio de Janeiro, Brazil. In its 2009 Olympic bid, officials promised that the city's waterways would be cleaned up but Brazil will not make good on its commitment to clean up Rio de Janeiro's sewage-filled Guanabara Bay by the 2016 Olympic Games. Little progress has been made on the clean up, and with just over two years to go until the Olympics, nearly 70 percent of the sewage in the metropolitan area of 12 million inhabitants continues to flow untreated, along with thousands of tons of garbage daily, into area rivers, the bay and even Rio's famed beaches like Copacabana and Ipanema. (AP Photo/Felipe Dana)