Beijing Goes Dark For Earth Hour

BEIJING, CHINA - MARCH 29: The children choir charity song during the Earth Hour 2014 power switch off at Central Business District on March 29, 2014 in Beijing, China. Earth Hour, launched in 2007 in Australia by the World Wide Fund for Nature (WWF), a global conservation group, calls on people, organizations and cities to turn off their non-essential lights for one hour starting at 8:30 p.m. local time. (Photo by Lintao Zhang/Getty Images)