Earth Hour - Global Awareness of Global Warming
"Earth Hour ... annual international event started in 2007, held on the last Saturday of March, that asks households and businesses to turn off their lights and non-essential electrical appliances for one hour in the evening. ...promoted by the World Wildlife Fund (WWF) Australia and the Sydney Morning Herald."
See Wikipedia for images of major locations before and after the lights are turned off.
Via: Wikipediua Link
" ... effect of last year's [2007] Earth Hour was infectious. This year 26 major world cities and more than 300 other cities and towns have signed up to participate."
"New Zeeland and Fiji kicked off the event this year .... Following Australia, lights will go out in major Asian cities including Manila and Bangkok before moving to Europe and North America ... One of the last major cities to participate will be San Francisco ..."
" ... Gogle put its support behind Earth Hour, with a completely black page and the words: "We've turned the lights out. Now it's your turn.""
Via: Yahoo New Link