Salt, the solution to winter’s dangers, threatens US waters

In this Jan. 16, 2017 file photo, a city truck spreads salt on Q Street in Lincoln, Neb. Scientists are starting to raise concerns about road salt’s impact on the environment, especially drinking water, because lakes and streams near roads are showing elevated levels of sodium and chloride. (Eric Gregory/The Journal Star via AP, File)

CONCORD, N.H. — When roads turn into ice rinks, consider trying beet juice, molasses, and even beer or cheese waste to make them safer. So say experts who fear road salt is starting to take a toll on the nation’s waterways, putting everything from fish and frogs to microscopic zooplankton at risk.