Sustainable Biofuels
            
              by
			
			
            Kathrin Keinrath 
			
          
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            last modified
          
          Dec 14, 2009 12:53 PM
        
      
    
      
      
      
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The idea that without stronger and enforceable sustainability criteria biofuels may increase as many social and environmental problems as they solve is one which is increasingly gaining acceptance.


        
        
        
        