International Environmental Policy stands no chance without Brazil, Russia, India and China

International environmental policy has a chance of succeeding, only if Brazil, Russia, India and China participate, and if swift action is taken; only then will it be affordable and feasible. The OECD Environmental Outlook to 2030 projects that world GDP will almost double by 2030. Policy simulation shows that it would cost just over 1% of that growth to implement policies that can cut key air pollutants by about a third.