Organized by the World Wildlife Fund, Earth Hour started last year in Sydney, Australia. To raise awareness of climate change, Sydney residents were asked to turn their lights off for one hour at 8 pm on March 31, 2007. The response was overwhelming: 2.2 million people and 2100 businesses flipped the switch, plunging Sydney into darkness. For that hour, the energy consumption in the city decreased by 10%.
This year Earth Hour is going global. At 8 pm (local time) on March 29, people all over the world will be turning off their lights. Imagine the view from space, as urban centers voluntarily dim, a global wave. Let's redefine rolling blackouts... Watch the video. Join the movement. Turn off your lights.