The unveiling of the official logo was postponed by Orani João Tempesta out of respect to the January 2011 natural disasters . The logo was later revealed on 7 February 2012 . The official logo was presented to President Dilma Rousseff by Rio de Janeiro governor , Sérgio Cabral Filho on DVD
January 2011 natural disasters
January 2011 Rio de Janeiro floods and mudslides
World Youth Day 2013