A large-scale study of social and environmental impacts from Rio Tinto’s abandoned Panguna mine in Bougainville finds a plethora of actual and potential human rights violations, including risks to life. A large-scale study of social and environmental impacts from Rio Tinto’s abandoned Panguna mine in Bougainville finds a plethora of actual and potential human rights violations, including risks to life. Mining Environmental Issues, Mining and Metals Industry Latest business news