US carbon outlook: John Melby, GreenX

While California aims to use its cap-and-trade scheme to clean up its own carbon footprint, it could also become a template for a federal scheme in the US, according to John Melby, managing director, North American markets at GreenX. Speaking to Pauline McCallion at the Energy Risk USA conference in Houston, he said: "California's goal is to set a standard and clean up its own footprint, but the scheme could also be used as a blueprint to bring federal and international markets together." Mel