Copper mining and refining

FILE - In this Oct. 4, 2011, file photo, a core sample drilled from underground rock near Ely, Minn., shows a band of shiny minerals containing copper, nickel and precious metals, center, that Twin Metals Minnesota LLC, hopes to mine near the Boundary Waters Canoe Area Wilderness in northeastern Minnesota. Twin Metals Minnesota has formally submitted a plan to regulators for the underground copper-nickel mine. The filing launches what's expected to be a lengthy environmental review and permitting process for what would be Minnesota's second copper-nickel mine. (AP Photo/Steve Karnowski, File)
December 18, 2019 - 5:50 pm
ST. PAUL, Minn. (AP) — Twin Metals Minnesota formally submitted a plan to regulators Wednesday for an underground copper-nickel mine near Ely in northeastern Minnesota, a project that has drawn fierce opposition because it would sit just upstream from the Boundary Waters Canoe Area Wilderness...
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FILE - In this Oct. 4, 2011, file photo, a core sample drilled from underground rock near Ely, Minn., shows a band of shiny minerals containing copper, nickel and precious metals, center, that Twin Metals Minnesota LLC, hopes to mine near the Boundary Waters Canoe Area Wilderness in northeastern Minnesota. Twin Metals Minnesota has formally submitted a plan to regulators for the underground copper-nickel mine. The filing launches what's expected to be a lengthy environmental review and permitting process for what would be Minnesota's second copper-nickel mine. (AP Photo/Steve Karnowski, File)
December 18, 2019 - 2:00 pm
ST. PAUL, Minn. (AP) — Twin Metals Minnesota formally submitted a plan to regulators Wednesday for an underground copper-nickel mine near Ely in northeastern Minnesota, a project that has drawn fierce opposition because it would sit just upstream from the Boundary Waters Canoe Area Wilderness...
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FILE - In this Oct. 4, 2011, file photo, a core sample drilled from underground rock near Ely, Minn., shows a band of shiny minerals containing copper, nickel and precious metals, center, that Twin Metals Minnesota LLC, hopes to mine near the Boundary Waters Canoe Area Wilderness in northeastern Minnesota. Twin Metals Minnesota has formally submitted a plan to regulators for the underground copper-nickel mine. The filing launches what's expected to be a lengthy environmental review and permitting process for what would be Minnesota's second copper-nickel mine. (AP Photo/Steve Karnowski, File)
December 18, 2019 - 12:03 pm
ST. PAUL, Minn. (AP) — Twin Metals Minnesota formally submitted a plan to regulators Wednesday for an underground copper-nickel mine near Ely in northeastern Minnesota, a project that has drawn fierce opposition because it would sit just upstream from the Boundary Waters Canoe Area Wilderness...
Read More
FILE - In this Oct. 4, 2011, file photo, a core sample drilled from underground rock near Ely, Minn., shows a band of shiny minerals containing copper, nickel and precious metals, center, that Twin Metals Minnesota LLC, hopes to mine near the Boundary Waters Canoe Area Wilderness in northeastern Minnesota. Twin Metals Minnesota has formally submitted a plan to regulators for the underground copper-nickel mine. The filing launches what's expected to be a lengthy environmental review and permitting process for what would be Minnesota's second copper-nickel mine. (AP Photo/Steve Karnowski, File)
December 18, 2019 - 11:17 am
ST. PAUL, Minn. (AP) — Twin Metals Minnesota formally submitted a plan to regulators Wednesday for an underground copper-nickel mine near Ely in northeastern Minnesota, a project that has drawn fierce opposition because it would sit just upstream from the Boundary Waters Canoe Area Wilderness...
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In this photo provided by the U.N. in Papua New Guinea, members of the Bougainville Women's Federation cheer after results were announced in an independence referendum, Wednesday, Dec. 11, 2019, in Buka, Papua New Guinea. The South Pacific region of Bougainville voted overwhelmingly to become the world's newest nation by gaining independence from Papua New Guinea. (Serahphina Aupong/U.N. in PNG via AP)
December 11, 2019 - 8:22 am
CANBERRA, Australia (AP) — The South Pacific region of Bougainville voted overwhelmingly to become the world’s newest nation by gaining independence from Papua New Guinea, results showed Wednesday. Bougainville Referendum Commission Chairman Bertie Ahern was cheered when he announced that more than...
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This Dec. 15, 2016 photo shows a slag pile of mining waste in Anaconda, Mont. Environmental regulators have put a halt to a Montana business association’s sale of sandwich bags of mining waste advertised as a “Bag O’Slag.” Environmental Protection Agency officials overseeing the Superfund cleanup of pollution from decades of smelter operations in Anaconda came across the potentially toxic tchotchkes for sale by the city’s chamber of commerce. The slag contains small amounts of arsenic and lead. Mary Johnston, the chamber’s executive director, said Monday, Nov. 18, 2019 the EPA asked them to stop selling the black slag in a re-sealable bag and gave them some alternatives. (AP Photo/Matt Volz)
December 03, 2019 - 4:34 pm
WASHINGTON (AP) — The Supreme Court seemed inclined Tuesday to rule that Montana homeowners who are seeking additional cleanup of arsenic left over from years of copper smelting need the permission of the Environmental Protection Agency. That outcome would be a loss for the homeowners and a win for...
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This Dec. 15, 2016 photo shows a slag pile of mining waste in Anaconda, Mont. Environmental regulators have put a halt to a Montana business association’s sale of sandwich bags of mining waste advertised as a “Bag O’Slag.” Environmental Protection Agency officials overseeing the Superfund cleanup of pollution from decades of smelter operations in Anaconda came across the potentially toxic tchotchkes for sale by the city’s chamber of commerce. The slag contains small amounts of arsenic and lead. Mary Johnston, the chamber’s executive director, said Monday, Nov. 18, 2019 the EPA asked them to stop selling the black slag in a re-sealable bag and gave them some alternatives. (AP Photo/Matt Volz)
December 03, 2019 - 3:16 pm
WASHINGTON (AP) — The Supreme Court seemed inclined Tuesday to rule that Montana homeowners who are seeking additional cleanup of arsenic left over from years of copper smelting need the permission of the Environmental Protection Agency. That outcome would be a loss for the homeowners and a win for...
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FILE - In this July 22, 2015 file photo, Tribal councilman Wendsler Nosie Sr. speaks with Apache activists in a rally to save Oak Flat, land near Superior, Ariz., sacred to Western Apache tribes, in front of the U.S. Capitol in Washington. Nosie is drawn to a mountainous area in central Arizona where he and other Apaches have harvested medicinal plants, held coming-of-age ceremonies and gathered acorns for generations. On Thursday, Nov. 28, 2019, he'll start a three-day journey to make a permanent home at Chi’chil Bildagoteel, or Oak Flat, in protest of a copper mine made possible by a federal land exchange. (AP Photo/Molly Riley, File)
November 27, 2019 - 5:25 pm
FLAGSTAFF, Ariz. (AP) — Wendsler Nosie Sr. is drawn to a mountainous area in central Arizona where he and other Apaches have harvested medicinal plants, held coming-of-age ceremonies and gathered acorns for generations. On Thursday, he’ll start a three-day journey to make a permanent home in the...
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FILE - In this June 29, 2018, file photo, pipeline used to carry crude oil is shown at the Superior terminal of Enbridge Energy in Superior, Wis. The divisive fight over the future of a crude oil pipeline across Minnesota highlights the dilemmas for Democrats in a state that's expected to become a battleground in the 2020 presidential race. And that could spell opportunity for President Donald Trump, who came close to winning the historically red state in 2016. (AP Photo/Jim Mone, File)
September 09, 2019 - 10:44 am
MINNEAPOLIS (AP) — A divisive fight over the future of a crude-oil pipeline across Minnesota is pinning presidential candidates between environmentalists and trade unions in a 2020 battleground state, testing their campaign promises to ease away from fossil fuels. Progressive candidates Elizabeth...
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FILE - In this May 13, 2019, file photo, a sign for Sonoita stands in the heart of southeastern Arizona where owners of wineries and other small tourism operations worry that the Rosemont Copper Mine proposed to be built in the nearby Santa Rita Mountains could harm their businesses with mining trucks rumbling down scenic state highway 83 that runs past the range. A federal judge on Wednesday, July 31, 2019, has overturned the U.S. Forest Service's approval of a Canadian company's planned new copper mine in southeastern Arizona. The judge ruled the agency improperly evaluated and considered water use issues associated with the Rosemont Mine planned in the Santa Rita Mountains on part of the Coronado National Forest. (AP Photo/Anita Snow, File)
August 01, 2019 - 11:50 am
PHOENIX (AP) — A federal judge has overturned the U.S. Forest Service's approval of plans for a new copper mine in southeastern Arizona in a decision that comes amid a larger battle across the West over the use of public lands for mining. The judge ruled late Wednesday that the agency improperly...
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