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Saving Lives Millions at a Time: The Environment Section

• Case studies: Vitamin A; air quality; an effective water filter; waterborne parasites   
  
  
• Essay by Pico Iyer    
  
  
• Research: Mercury levels; "Meatless Monday"; air pollution; the "Dead Zone"   
  
  
• History: London's killer smog; Anna Baetjer; McCollum's rats   
  
  
• Profile of Mai Anh Hoang