Associated Press
Children turn on their LED lights to form " 60 + " in support of global efforts on reducing greenhouse gases before Taipei 101 building turns its lights off in Taipei, Taiwan, Saturday, March 23, 2013. Organised by the World Wide Fund for Nature, earth hour is observed every year to create awareness about conservation of energy and climate change. Around the world, people and organisations will be turning their lights off from 8:30 to 9:30 pm local time.(AP Photo/Chiang Ying-ying)

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