Comment on Salt keeps icy roads safe. It’s also putting North America’s freshwater lakes at risk.

Salt keeps icy roads safe. It’s also putting North America’s freshwater lakes at risk.

By Ben Guarino, The Washington Post In the 1940s, Americans found a new way to love salt. Not simply for sprinkling on food – we’d acquired a taste for the mineral long before that – but for spreading on roads and sidewalks. Salt became a go-to method to de-ice frozen pavement. During the past half-century, annual U.S.

 

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