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Will You Participate in Earth Hour Tonight?

Tonight at 8:30 p.m. Earth Hour will begin, and millions of people around the globe will shut off their lights to make a statement about climate change. Businesses, residences, government buildings, and iconic landmarks will all participate. Here is a shot of the Las Vegas Strip — normally one of the world's brightest spots — during Earth Hour last year. Will you participate?

Source: Getty
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