1. 
   Ok Tedi environmental disaster
   The Ok Tedi Mine operates to extract copper-gold porphyry from an open pit mine in the Western Province of Papua New Guinea. The Ok Tedi environmental disaster associated with it, due to the annual discharge of millions of tons of mining waste, has harmed the environment and livelihood of 50,000 pe...
   Found op http://en.wikipedia.org/wiki/Ok_Tedi_environmental_disaster
   
   

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