One year before the Rio 2016 Olympic games, three bodies of water slated to be used for water sports have been found to be dangerously filthy. Scientists have found bacteria and viruses in the ...

A discarded sofa litters the shore of Guanabara Bay in Rio de Janeiro ... the pollution in the bay can cause disease. Should athletes be worried? A: The bay is not a homogeneous body of water ...

With just four days until the start of the Olympic Games in Brazil, reports indicate that levels of pollution in Rio de Janeiro remain ... have been found in the water here. But most of all ...