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Earth Hour event held worldwide

Source: Xinhua| 2019-03-31 07:38:12|Editor: xuxin
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BELGIUM-BRUSSELS-EARTH HOUR

Photo taken on March 30, 2019 shows lights off of the Grand Place during the Earth Hour event in Brussels, Belgium. Earth Hour is a global initiative first launched by World Wildlife Fund (WWF) in 2007 and soon became a popular movement worldwide. (Xinhua/Zheng Huansong)

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