In this photo taken on Friday, June 15, 2012, a fisherman walks on a trash-ridden beach on Guanabara Bay near the international airport in Rio de Janeiro, Brazil. The throngs streaming into Rio for ... more 
In this photo taken on Friday, June 15, 2012, a fisherman walks on a trash-ridden beach on Guanabara Bay near the international airport in Rio de Janeiro, Brazil. The throngs streaming into Rio for the United Nations Conference on Sustainable Development or Rio+20 may be dreaming of white-sand beaches and clear, blue waters, but what they are first likely to notice as they leave the airport is not the salty tang of ocean in the breeze, but the stench of raw sewage. (AP Photo/Victor R. Caivano) less 
1 / 31
Associated Press | Photo By Victor R. Caivano
Wed, Jun 20, 2012 12:43 PM EDT