Frozen Roads

Winter brings snowy conditions to roads in many cities, and many react with snow-melting salt solutions. But the physical and environmental damage of salt is leading some to look for other means of fighting the freeze.
Jan 14, 2010   NRDC
<p>Officials in the United Kingdom are looking at a new technique to deal with frozen winter roads -- by collecting and saving summer heat.</p>
Apr 27, 2008   The Guardian