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.
Learn more about road salt's surprising history:
http://news.nationalgeographic.com/news/2014/02/140212-road-salt-shortages-melting-ice-snow-science/
VIDEOGRAPHERS AND EDITORS: Eileen Mignoni and Nacho Corbella
Learn more about road salt's surprising history:
http://news.nationalgeographic.com/news/2014/02/140212-road-salt-shortages-melting-ice-snow-science/
VIDEOGRAPHERS AND EDITORS: Eileen Mignoni and Nacho Corbella
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- Documentary
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