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Toxic Mine Waste. The Dangers of Copper Sulfide Mining

A few months ago, the Trump administration’s Bureau of Land Management renewed the previously cancelled mineral exploration leases to Antofagasta, the Chilean mining giant that owns Twin Metals, the Canadian penny-stock company that has been doing the groundwork for Antofagasta’s experimental plans to mine copper in via an underground mine in water-rich northern Minnesota near the Boundary Waters Canoe Area Wilderness and Quetico Provincial Park in Canada.  Prior to Trump’s administration, the US Forest Service concluded that copper mining posed “an inherent risk of irreparable harm to an irreplaceable wilderness.” The Trump administration had earlier cancelled a more complete study that would have fully determined the extent of that harm.  Read more....



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