A federal appeals court Tuesday agreed with two tribes who challenged a Freeport Minerals plan to divert water from the Gila River, saying the company had failed to show that its proposal would not affect the tribes. Read more» 
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Copper is one of the pillars of Arizona’s economy, but falling demand has depressed prices. More than 1,000 workers were recently let go at mines here and in New Mexico, but the company planning the large open-pit Rosemont Mine in the mountains southeast of Tucson is forging ahead. Read more»
More than a thousand Southern Arizona miners will soon be on the unemployment line, with Freeport-McMoRan announcing Wednesday that the Sierrita open pit mine in Green Valley will be completely shut down.
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Mining giant Freeport-McMoRan will lay off about 430 workers from the Sierrita open pit mine in Green Valley, and will explore the possibility of completely shutting down the mine. The company will also close down its copper mine in Miami, north of Tucson, officials said. Read more»
Who is funding Team ACA, the secretive nonprofit that has supplemented Arizona’s economic development agency with private money? The answer has proven elusive. Read more»
Public-private partnerships such as the Arizona Commerce Authority further business interests in the state, overseeing state corporate tax incentives and grants worth hundreds of millions of dollars. Similar organizations in Ohio, Wisconsin, Iowa and Florida function amid persistent questions about transparency as unelected business authorities operate on state funds, but disclose little. Read more»
The U.S. Fish and Wildlife Service downgraded two fish species to endangered Thursday, designating more than 700 miles of Arizona and New Mexico waterways as critical habitat in the process. Read more»
Although eight Arizona sites are on a secret federal "watch list" of polluters who have not been subject to timely formal enforcement, the extent of air pollution in the state is clouded by poor record-keeping and bureaucratic miscommunication, a TucsonSentinel.com investigation shows. Read more»
With just five months left until the state’s 100th birthday, organizers still have no idea where 75 percent of their budget will come from but are hopeful that private donors will cover the gap. Read more» 2
Freeport-McMoRan Copper & Gold Inc. is investing $500 million in a Louisiana company set to ramp up oil production in the Gulf of Mexico in the next few years. Read more»
