Former U.S. vice president Al Gore (R) talks to Basque regional premier Juan Jose Ibarretxe (3rd L), Bilbao mayor Inaki Azkuna (L), Basque parliament president Izaskun Bilbao (2nd L) and Guggenheim Bilbao director Juan Ignacio Vidarte (2nd R) in front of Guggenheim museum in Bilbao October 16, 2008. Gore gave a conference '' Thinking Green. A Economic Strategy For The 21st Century" at the museum on Thursday. REUTERS/Vincent West (SPAIN)