Michigan Congressman John Dingell has long looked out for Detroit's carmakers on Capitol Hill fighting fuel efficiency and tailpipe emissions standards. But now Dingell faces a challenge from one of the greenest Democrats ? California's Henry Waxman.
President-elect Barack Obama says when he takes office the United States will take strong action to combat climate change. Living on Earth's Ashley Ahearn reports that leaders and legislators have praised Obama for this promise.