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          The sands of time blow toward a greener world
          
        
          
      
          
      
          
        
          
          China Daily |
          Updated: 2021-10-30 11:34
          
          
          
          
        


        
      
          
      
          
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   People work in groups for desert control. Wuwei in Gansu takes up 32,300 square kilometers, of which 14,800 square kilometers are desert, one of the most severely desertified areas in the country. REN SHICHEN/FOR CHINA DAILY 
 
           

           

          
        
          

        
        
      
          
        
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