lights out for Earth Hour.

Put it on the calendar: at 8:30pm on March 27th, 2010, lights around the world will be shut off for one hour to help combat climate change in an event called Earth Hour. Check out the official Earth Hour video to see what happened last year and what is to come this weekend. For sixty minutes, people and businesses across the globe will turn off their lights to reduce energy consumption

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lights out for Earth Hour.