<http://schema.org/description>
"Honor the earth at the Earth Day San Francisco at Civic Center Plaza and learn about environmental and sustainable practices that help protect our planet. See amazing exhibits, check out the eco-fashion show, enjoy live music and recycled art and sample organic foods. Spend the night on Earth day, and we will give a portion of your room rate to a leading environmental program."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.kinggeorge.com/blog/san-francisco-events/earth-day.aspx>