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11:57, 31-Mar-2019
Lights off across the world to mark Earth Hour
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The lights of the world's most famous monuments were turned off for an hour on Saturday to mark Earth Hour. The global initiative was launched by the World Wildlife Fund (WWF) in 2007 and soon became a popular movement worldwide.
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Copyright © 2018 CGTN. Beijing ICP prepared NO.16065310-3
Copyright © 2018 CGTN. Beijing ICP prepared NO.16065310-3