The environmental risks of coal production are well documented; burning coal is a significant cause of global warming. The health risks of coal development are less well-known. Dr. Alan Lockwood has written a book about that risk called “The Silent Epidemic: Coal and the Hidden Threat to Health.” Lockwood is a retired professor of neurology and nuclear medicine at the State University of New York. He was in Missoula recently to speak at a medical conference. In this feature interview, Lockwood talks with News Director Sally Mauk about the “silent epidemic”.