sábado, 29 de março de 2014

Earth Hour



Thousands of people around the world will switch off their lights for one hour between 8.30pm and 9.30pm as part of an initiative organized by the World Wildlife Fund (WWF). 


This symbolic lights-off event started in Sydney, Australia in 2007. Since then it has grown to engage over 150 countries and thousands of people who will  turn their lights off at 8.30pm tonight in support of WWF's Earth Hour.


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