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Where Does Road Salt Come From? | National Geographic

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Published on Feb 19, 2014

Road salt use in the U.S. exceeded 17 million tons in 2013. This year cities, states, and municipalities across the country are clamoring for more salt due to a particularly severe winter. New York City is replenishing its supplies this month with large shipments from Chile.
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Learn more about road salt's surprising history:
http://news.nationalgeographic.com/ne...

VIDEOGRAPHERS AND EDITORS: Eileen Mignoni and Nacho Corbella

Where Does Road Salt Come From? | National Geographic
https://youtu.be/XHdcKPvnzT8

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