<http://schema.org/description>
"About a year ago, Sydney started a trend of turning off your lights for one hour in a show of support for protecting our environment. Soon after, London, San Francisco quickly followed suit. One year later, the organizers of Sydney&amp;#039;s Earth Hour feel that one"^^<http://www.w3.org/2001/XMLSchema#string>
<http://inhabitat.com/everyone-turn-off-your-lights/>