By Carol Costello and Ronni Berke, CNN Chuck Newell runs the National Gypsum Plant in Shippingport, Pennsylvania. His company makes drywall: in fact, National Gypsum's drywall could be in your home right now. National Gypsum is proudly "green." All of the drywall manufactured there is made of synthetic gypsum – a substance recycled from material … Continue reading EPA on Coal Ash: Economic Fallout