Girls light candles during the annual Earth Hour event in Islamabad, capital of Pakistan, on March 30, 2019. Earth Hour is a global initiative first launched by World Wildlife Fund (WWF) in 2007 and soon became a popular movement worldwide. (Xinhua/Ahmad Kamal)
Earth Hour event held worldwide
Source: Xinhua| 2019-03-31 07:38:12|Editor: xuxin
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