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          Scientists grapple with looming volcanic question
          

          By Duan Yan | China Daily | Updated:  2011-05-24 07:54
 



          



          

          

          

          


          


          Scientists grapple with looming volcanic question
          


          Zhong Guangpei (left) and Su Xiaoyi, two staff members at Changbaishan Tianchi Volcano Observatory, measure the temperature of a hot spring on Changbai Mountain to monitor the volcano's activity. Zhang Tao / China Daily
          
          		

          
          

          


          

          

          


          


          Scientists grapple with looming volcanic question
          


          

          Scientists grapple with looming volcanic question
          

          
          		

          
          

          

          

          

          

          

          


          


          


          
 
 



          


          

          



          


          

          

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