A stand-up paddle boarder passes on Lagoa Rodrigo de Freitas, which will host rowing and canoeing events in the Rio 2016 Olympic Games, on December 3, 2013 in Rio de Janeiro, Brazil. The picturesque ... more 
A stand-up paddle boarder passes on Lagoa Rodrigo de Freitas, which will host rowing and canoeing events in the Rio 2016 Olympic Games, on December 3, 2013 in Rio de Janeiro, Brazil. The picturesque lagoon is challenged by environmental problems including sewage, pollution, poor drainage and chronic fish die-offs. Close to 70 percent of the sewage in Rio drains untreated and sometimes drains into the waterways which will host Olympics events. Rio's Olympic committee has said it will fix the pollution issues before the events. (Photo by Mario Tama/Getty Images) less 
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Getty Images | Photo By Mario Tama/Getty Images
Wed, Jan 22, 2014 6:00 PM EST