This Earth Hour 2012, starting at 8:30pm on Saturday, March 31, participate in the world's largest voluntary action for the environment by switching off your lights for one hour. What started out as an initiative in one city, Sydney, Australia, has grown into a global movement for change, with people, businesses and governments in over 130 countries across every continent coming together for the benefit of the planet. Now, can you go beyond the one hour?
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