Coal Map of US Deaths (IMAGE) Michigan Technological University Caption Certain geographic regions are harder hit by coal-related deaths from air pollution, shown by calculating US deaths per kilowatt hour per year. Credit Emily Prehoda/Michigan Tech Usage Restrictions please credit License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.