A Road Salt Saga

Living on Earth
The World

A century ago, workers cleared snow from the roads by dousing it with flaming gasoline. Today we clear with salt, by pouring about 10 million tons of it on our roads every winter. But all this salt is taking a toll on the environment. A handful of states have stopped using the corrosive cleaner and they’re trying a vinegar like alternative. Living on Earth’s Liz Lempert reports.

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