Road salt saves lives. But its rough on the environment. What should we do? http://www.vox.com/2015/1/13/7531833/road-salt-environment-alternatives … by @bradplumer
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Road salt saves lives. But its rough on the environment. What should we do? http://www.vox.com/2015/1/13/7531833/road-salt-environment-alternatives … by @bradplumer