Mountaintop-removal coal mining causes many streams and rivers in Appalachia to run consistently saltier for up to 80 percent of the year, a new study by researchers at the University of Wyoming and Duke University finds.
Mountaintop-removal coal mining causes many streams and rivers in Appalachia to run consistently saltier for up to 80 percent of the year, a new study by researchers at the University of Wyoming and Duke University finds.