Over the course of five years, 190 of the 523 coal burning power plants in the United States have retired. The seven remaining coal plants in Maryland look to be staying put, but not without adamant demands from public health and environmental advocacy groups that they clean up their act. In this hour of Midday, Tim Wheeler, environmental reporter for the Baltimore Sun, Josh Tulkin, director of the Maryland Chapter of the Sierra Club, and Dr. Gwen DuBois, of Chesapeake Physicians for Social Responsibility join us to discuss the public health concerns posed by coal burning power plants, and the controversy surrounding Maryland's regulations to reduce air pollution.