Seattle City Light is participating in Earth Hour on March 23 by turning off the historic City Light sign at the South Service Center from 8:30 to 9:30 p.m.
Earth Hour began in Sydney, Australia, in 2006. The event has grown to hundreds of millions of people across 152 countries who switch off their lights for an hour. The purpose of the annual event is to encourage households and businesses to turn off non-essential lights for one hour and to raise awareness about climate change. Organizers also are striving for greater use of renewable energy from solar, wind power, geothermal energy and hydroelectricity.