Join the millions around the world who have pledged to go "one hour - no power" on March 29, 2008 in order to raise awareness for climate change. The Earth Hour concept was created by the World Wildlife Fund, and last year 2.2 million people and 2100 businesses in Sydney turned off their lights; sending the message that each one of us can make an impact. Check out the video to learn more about how the concept began:

While Boston isn't an official host city, consider going dark from 8 - 9 pm tomorrow night to take part in this important event. And hey, we can think of some ideas to keep you busy in the dark, if you need any suggestions...

Photo of the Natalie Imbruglia sportin' her planetary love by earthhour used under a creative commons license