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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

Combo photo taken on March 30, 2019 shows lights on (top) and off of the Grand Place before and 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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