epa04572789 Former US Vice President Al Gore (L) speaks next to US rapper Pharell Williams (R), during a panel session on the first day of the 45th Annual Meeting of the World Economic Forum (WEF), in Davos, Switzerland, 21 January 2015. The overarching theme of the Meeting, which takes place from 21 to 24 January, is 'The New Global Context'. EPA/LAURENT GILLIERON
