Description: Save Our Sky Blue Waters - Northern Minnesota's waters and forests threatened by sulfide mining and industrial expansion
glencore (8) acid mine drainage (5) sulfide mining (2) polymet (1) twin metals (1) duluth metals (1) save our sky blue waters (1) www.sosbluewaters.org (1)
Located between the North Shore of Lake Superior and the Boundary Waters Canoe Area Wilderness, the Arrowhead Region is Minnesota's most loved recreation area and a place that millions visit for rejuvenation. This region faces an unprecedented industrial expansion that is certain to affect the qualities that draw people here. One of the worst threats from this expansion is from the mining of sulfide ores, a particularly harmful type of mining that has not been conducted in Minnesota before. PolyMet Mining's
Sulfide ores are ores containing heavy metals (such as copper or nickel) that are bonded to sulfur, forming sulfide minerals. When exposed to air and moisture, a chemical reaction generates sulfuric acid that can leach into the surrounding environment and cause the release of the metals into streams and lakes at levels that are toxic to fish and other aquatic life. (See Video) This phenomenon is known as Acid Mine Drainage. In a surface mine like the one proposed by PolyMet , mining leaves huge piles of was