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Earth Hour 2011 Official Video from WWF on Vimeo.
EARTH HOUR 2011 will take place on Saturday 26 March at 8.30PM (local time). Earth Hour is the largest mass participation environmental event in the world and every year, WWF encourages people all over the world to turn off their lights for one hour in a symbolic gesture to pledge their commitment to combating climate change. This Earth Hour we want you to go beyond the hour, so after the lights go back on think about what else you can do to make a difference. Together our actions add up.