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Earth Hour event held worldwide 

        

        
 Source: Xinhua| 2019-03-31 07:38:12|Editor:  xuxin 

        

              
        


        

        

        

        
    

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        CANADA-TORONTO-EARTH HOUR
        

        Photo taken on March 30, 2019 shows the Canadian National Tower after lights were dimmed in Toronto, Canada. "Earth Hour" is a global initiative first launched by the World Wildlife Fund (WWF) in 2007 and soon became a popular movement worldwide. (Xinhua/Zou Zheng)
        

        

        

        





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