A European scientist noticed that pond near a brewery didn't freeze in winter. So he has developed a sweet brew for use on roads in winter. There will be 25 towns and schools using it this winter. They call it magic salt. Some complain about the sweet smell and the stickiness.
http://www.boston.com/news/local/articles/2004/12/08/firm_serves_sweet_brew_for_de_icing_roads/
http://www.boston.com/news/local/articles/2004/12/08/firm_serves_sweet_brew_for_de_icing_roads/