WRI's Kennedy discusses impact of fluctuating natural gas prices on coal generation

Last week, the U.S. Energy Information Administration released new data showing coal-fired power generation was on the rise at the end of 2012. What contributed to the rise, and how are fluctuating natural gas prices affecting coal's prospects? During today's OnPoint, Kevin Kennedy, director of the U.S. Climate Initiative at the World Resources Institute, discusses the future of natural gas and coal in the United States' energy mix.