Deforestation pledge, renewable energy and Google's carbon footprint

Ian King speaks to Sky's Adam Boulton about a pledge made by world leaders to end deforestation by the end of the decade, and how much of a difference this will make. Plus, hear from Google's president of E-M-E-A Business and Operations about how it's aiming to operate on carbon-free energy alone by 2030. And the president of The Rockefeller Foundation joins the show to talk about how it's helping to raise funds for renewable energy projects in developing countries.