Lights off for Earth Hour

Earth Hour 2010. Candles forming 60 for Earth Hour near the Eiffel Tour, Paris, France.

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On Saturday, March 31 at 8:30pm get ready to turn off your lights for one hour to participate in the world’s largest voluntary environmental action: Earth Hour. Earth Hour acts as a platform to showcase to the world what measures individuals, businesses, and governments are taking to reduce their environmental impact to save the planet. During this 2012 Earth Hour, World Wildlife Fund is daring the world to take positive actions for the environment and to showcase them in the "I Will If You Will" campaign. Go to http://www.youtube.com/earthhour to see challenges and create your own! Click through the slideshow below to view photos of past participants and landmarks around the world that have “gone dark.”

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