CANNES, FRANCE - JUNE 26: Al Gore talks on stage during the WPP seminar as part of the Cannes Lions International Festival of Creativity on June 26, 2015 in Cannes, France. (Photo by Francois G. Durand/Getty Images)
CANNES, FRANCE - JUNE 26: Al Gore talks on stage during the WPP seminar as part of the Cannes Lions International Festival of Creativity on June 26, 2015 in Cannes, France. (Photo by Francois G. Durand/Getty Images)