Comment on “Effect of coal-fired power generation on visibility in a nearby National Park (Therhorst and Berkman, 2010)”

White, W. H., Farber, R. J., Malm, W. C., Comment on “Effect of coal-fired power generation on visibility in a nearby National Park (Therhorst and Berkman, 2010)”, Atmos. Environ., 55, 173-178