<http://schema.org/headline>
"Earth Hour 2011 starts at 8:30PM your local time, wants you to switch off for a bit"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.engadget.com/2011/03/26/earth-hour-2011-starts-at-8-30pm-your-local-time-wants-you-to-s/>