See below for David Jones' presentation at the Mashable Social Good Summit earlier this week. In it, he speaks about how young people and technology are changing the world, and he introduces three One Young World ambassadors: Michael Teoh (Malaysia), Erin Schrode (USA), and Kwadwo Ofori Owusu (South Africa), who share their thoughts on youth activism and the causes they champion.

David Jones is global CEO of Havas and Euro RSCG Worldwide and cofounder of One Young World.