Science on Tap - Minocqua

During the past half-century, annual U.S. sales of road salt grew from 160,000 tons to about 20 million tons, as pointed out in a study in the Proceedings of the Natural Academy of the Sciences. NaCl kept roads free from slippery ice, but it also changed the nature of North America's freshwater lakes. Join Dr. Hilary Dugan for a discussion of the impacts of road salt on water quality.