Brazil's President's Dilma Rousseff attends a ceremony commemorating World Environment Day and to announce the venue of the Rio+20 conference, at the Planalto Palace June 5, 2012. REUTERS/Ueslei ... more 
Brazil's President's Dilma Rousseff attends a ceremony commemorating World Environment Day and to announce the venue of the Rio+20 conference, at the Planalto Palace June 5, 2012. REUTERS/Ueslei Marcelino/File Photo less 
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Reuters | Photo By UESLEI MARCELINO / REUTERS
Wed, Aug 31, 2016 7:33 PM EDT