Officials at Southern Company -- the largest coal-burning utility in the country -- have long opposed mandatory limits on greenhouse gas emissions. But as other major power producers call for new climate change policies, will Southern follow suit? During today's OnPoint, Chris Hobson, Southern Co.'s senior vice president for research and environmental affairs, outlines the company's strategy on global warming. He describes plans to build an IGCC clean coal power plant in Florida and the potential for carbon capture and storage technology. Plus, Hobson discusses why he is not optimistic about the potential for expanding renewable energy capacity in the Southeastern United States.