<http://schema.org/description>
"Better Bricks can be &amp;quot;grown&amp;quot; from sand, common bacteria, calcium chloride, and urea (yes, the stuff in your pee) instead of being baked, which consumes a ton of energy."^^<http://www.w3.org/2001/XMLSchema#string>
<http://inhabitat.com/researcher-grows-durable-bio-bricks-from-sand-bacteria-and-urea/>