Former U.S. Vice President and Nobel Peace Prize winner Al Gore speaks during a "Campus Party" Internet users gathering in Sao Paulo

 
Former U.S. Vice President and Nobel Peace Prize winner Al Gore speaks during a "Campus Party" Internet users gathering in Sao Paulo
Former U.S. Vice President and Nobel Peace Prize winner Al Gore speaks during a "Campus Party" Internet users gathering in Sao Paulo January 18, 2011. REUTERS/Paulo Whitaker