For one hour Saturday (March 28) people around the world will turn off their lights to make a statement about their commitment to finding solutions to the problems of climate change. It's called Earth Hour, and from 8:30 p.m. to 9:30 p.m. individuals, businesses, governments and organizations will go dark in support of the World Wildlife Fund's project to raise concerns about global warming. You can too. Just turn off your lights or make your participation public by signing up at the Earth Hour Web site.
Follow the Earth Hour project on Twitter: @earthhourus. Or search for other people's posts relating to Earth Hour by searching #earthhour at http://search.twitter.com.
There's even an Earth Hour app for the iPhone: "Its rigorous program of puzzles will prepare your mind and body for the important task ahead: Switching off that light."