This aerial view shows a boat dumping oil in the waters of Guanabara Bay in Rio de Janeiro, Brazil, Monday, March 23, 2015. Rio de Janeiro's mayor said in a television interview Monday that authorities “should have been able to achieve the goal” of cleaning up Guanabara Bay, where the Olympic sailing events are to be held. He added, “It is indeed a wasted opportunity”. (Photo by Felipe Dana/AP Photo)
