Photos: Cities dim for 'Earth Hour'
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Credit: Getty Images
PARIS, FRANCE - MARCH 31: (L-R) Serge Orru, General Director of French WWF branch, Isabelle Autissier, President of French WWF branch and Denis Baupin, Deputy Mayor of Paris turn of the lights of the Eiffel Tower during Earth Hour2012 on March 31, 2012 in Paris, France. According to organisers the biggest ever Earth Hour has participants including individuals, companies and landmarks in 147 countries and over 5,000 cities, agreeing to switch off their lights for one hour at 8:30pm. The Brandenburg Gate in Berlin, the Eiffel Tower in Paris, Big Ben Clock Tower in London, the Christ the Redeemer statue in Rio de Janeiro and the Empire State Building in New York are among the monuments whose operators have agreed to participate in the demonstration. (Photo by Antoine Antoniol/Getty Images)
