Earthjustice, the environmental litigation group, announced a victory in the pristine Boundary Waters Wilderness Area of Northern Minnesota. After decades of activism, the Biden administration reversed Trump's revival of two sulfide mineral leases in the Wilderness that could have had catastrophic impacts on the water quality and wildlife habitat. Sulfide mining is particular pernicious since the mineral when brought to the surface reacts with the atmosphere to produce sulfuric acid and heavy metal leachates. These sources of toxic pollution posed a threat to the recreation based economy of Ely, MN and the wild rice farming by tribes in the area. The Forest Service said in a 2016 memo to the Bureau of Land Management that the risk posed by the reinstated leases to the only protected sub-boreal forest in the lower 48 was "unacceptable". The Boundary Waters are noted for their purity. Some 2000 pristine lakes dot the region along the Canadian border providing abundant water recreation opportunities. It is the home of the endangered gray wolf, Canadian lynx and long-eared bat.
A Chilean company, Twin Metals wanted to establish a mining complex near Ely to exploit copper-nickle sufide deposits. Minnesota has a long history of mining, having supplied most of the iron ore need to fight WWII. Through a combination of public lobbying and timely litigation, including suits brought by Earthjustice, conservation advocates convinced the Biden administration to cancel the mining leases in 2022 and in 2023 it declared a twenty year ban on new mining in 200,000+ acres of the Superior National Forest. The company plans to appeal the cancellation of its leases. After a long fight, this is a significant win for Nature.