Photos: Cities dim for 'Earth Hour'
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Credit: AFP/Getty Images
This combo of pictures shows the Athens landmark Acropolis hill with the lights on and with the lights off (bottom-R) during the 'earth hour' on March 31, 2012 in Athens. Millions of people were expected to switch off their lights for Earth Hour on March 31 in a global effort to raise awareness about climate change that was even to be monitored from space. AFP PHOTO/ LOUISA GOULIAMAKI (Photo credit should read LOUISA GOULIAMAKI/AFP/Getty Images)
