Earth Hour is an international event organised by the WWF (World Wide Fund for Nature/World Wildlife Fund), and held on the last Saturday of March each year, which asks households and businesses to turn off their non-essential lights and electrical appliances for one hour to raise awareness towards the need to take action on climate change. Earth hour was conceived by WWF Australia and the Sydney Morning Herald in 2007, when 2.2 million residents of Sydney participated by turning off all non-essential lights. Following Sydney's lead, many other cities around the world adopted the event in 2008. 
Earth Hour is currently taking place on Saturday, March 28, 2009 at 8:30 pm, local time.
Sunday, March 29, 2009
Posted by Dalili at Sunday, March 29, 2009