1. Mammoth Cove National Park in Kentucky is in close proximity to the coal-fired electric utility plants in the Ohio Valley. Noting this, the National Parks Conservation Association(NPCA) reported that this national park had the poorest visibility of any in the country a. What is the connection between coal-fired plants and poor visibility? Coal-fired plants release sulfur dioxide, creating sulfate particles that are responsible  for 60-85% of the poor visibility in the eastern parks. b. The NPCA reported ‘the average […]