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

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.Tossed onto sidewalks and dumped onto highways, salt for decades has provided the cheapest and most effective way to cut down on traffic accidents and pedestrian falls during winter storms. But re