Decision was driven by a combination of environmental requirements, the age of the plants, competition from natural gas and declining electricity consumption in Tenessee.
Researchers probed that copper in drinking water – given at the maximum levels permitted in public water supplies – accelerated the growth of tumours in mice.
Resolution Copper mine —a 55%-45% joint venture between Rio Tinto and BHP— is expected to create 3,700 direct and indirect jobs and bring over $61 billion in economic benefits to Arizona over its 66-year life.