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Road salt threatens Michigan lakes and rivers. Can an alternative take hold?

Quoted: Last month, scientists at the University of Wisconsin-Madison and Michigan State University released results of a study revealing that society’s reliance on rock salt is salinating Lake Michigan.

Even small increases can trigger unknown ecosystem changes and secondary effects such as drinking water pipe corrosion, said Hilary Dugan, an associate professor at the University of Wisconsin-Madison’s Center for Limnology and lead author of the study.

Lake Michigan is still “extremely fresh” water, Dugan said. “There’s no cause for alarm. But I think people should be aware that it is rising and that is fully because of human-derived salts.”