Climate One: From Durban to Rio

For the first time ever, developing and industrialized countries are crawling toward a new treaty to reduce greenhouse gases. Supporters of the UN process find hope in an agreement struck in Durban to craft a deal to replace the Kyoto Protocol by 2015. Others say that bureaucratic process will not produce a deal and that bilateral and industry-focused pacts have a better chance of stemming carbon pollution. We talk with top experts surveying int'l efforts to wean the world off fossil fuels.