What a turn off

No, really!  This Saturday, March 28 the World Wildlife Fund (WWF) hopes to get 1 billion people to participate in Earth Hour 2009. All you have to do: turn off your lights from 8:30 pm - 9:30 pm.

Earth hour started in Sydney, Australia in 2007 when 2.2 million homes and businesses shut off their lights. In 2008, participation spread, with 50 million participants and global landmarks joining the crowd, including the Golden Gate Bridge, Rome's Colosseum, the Sydney Opera House, and the Coca Cola billboard in Times Square in Manhattan. This year, under the campaign VOTE EARTH, more than 74 countries and territories have pledge their support.