Former US vice president Al Gore addresses the audience during the Campus Party event in Mexico City

 
Former US vice president Al Gore addresses the audience during the Campus Party event in Mexico City
REFILE - ADDING INFORMATION ON THE EVENT Former U.S. vice president Al Gore addresses the audience during the Campus Party event in Mexico City July 19, 2011. The week-long technology festival, which has annual editions in different countries, covers a wide range of topics, including electronic entertainment, software programming, social media, robotics, green technology, astronomy, among many others, and features speakers from different technological fields. REUTERS/Carlos Jasso (MEXICO - Tags: SCI TECH)