Earth Hour 2010

Photo; http://en.wikipedia.org

Earth Hour 2010 is at March 27, 2010 from 8:30 p.m. to 9:30 p.m
Earth Hour started in 2007 in Sydney where residents of Sydney participated by turning off the every essential lights for an hour. And soon other cities around the world started to participate in the Earth Hour in 2008.

Know more about Earth Hour from Earth Hour