NRDC's Doniger previews oral arguments on greenhouse gas rules

As the U.S. Court of Appeals for the District of Columbia begins to hear oral arguments this morning to review four of EPA's greenhouse gas rules, what impact will the court's action have on future regulations coming out of EPA? During today's OnPoint, David Doniger, policy director of the Climate and Clean Air Program at the Natural Resources Defense Council, discusses his expectations for the arguments and possible outcomes.