Toxic heavy metals may have leached into the water during heavy rains.
Federal regulations will cut sulfur dioxide emissions 85 percent at the smelters.
The question of whether to tighten federal standards for the pollutant ozone is knocking on the door once more.
But failure wouldn’t prevent owner from getting the water permit it needs.
Opponents wonder if Hudbay is seeking to expand the proposed mine.
Bowden could grasp essence of a person in minutes, but could stick to a single subject for years.
Existing forecasts "critically underestimate" risks in Southwest, new study says.
Construction of the outlet center in Marana is set to start this week.
But developer isn't talking about its plans or whether tenants have been signed up.
Wildlife service supervisor changed his staff's findings, records show.
Possible ramifications loom for Rosemont Mine, Fort Huachuca.
Her unflagging devotion to bats will be missed, authorities say.
A declining Lake Mead could speed plans for full-scale recycling.
Environmental groups fighting a new, federally approved cleanup plan for the Navajo Generating Station say the Environmental Protection Agency is wrong to say that the new plan would clean the plant up more in the long run than an earlier plan that the agency shelved.
Navajo would close by 2044. Sierra Club may sue to block plan.
Critics say any mitigation deal could help the mine win approval.
This Q&A with company officials covers Rosemont environmental, business, transportation issues.
Environmentalists continue to push for a coal-free plant in Tucson.
Reservoir that supplies Western drinking water is at record low level.
During today's deluge, University of Arizona and world-renowned climate scientist Jonathan Overpeck posted plenty of tweets on the drought (and a few on the rains, too). The drought's not over yet after 10 days of monsoon rains, so this blog isn't being critical of Overpeck, or praiseworthy …
It's been said by some scientists that if climate change/global warming proceeds in the next 40 years as it has over the past 20 or so years, Tucson will feel like Phoenix by the mid to late 20th century.
Beautiful lands are for sale everywhere — will they be preserved or developed?
David Schutz paid $4.6 million in 1986 for 540 acres in the Tortolitas; now he will ask nearly $3 million for the parcel at auction in August.
The northern Mexican gartersnake has joined the ranks of federally protected species.
Arizona will be hit harder than most states, a new report says.
2011 wildfire was started by a company employee.
Phoenix won't run dry if the CAP runs short, official says.
Richard Warke, chairman of Augusta Resource Corp.'s board of directors, told the Canadian Financial Post newspaper this week that permitting delays for the proposed Rosemont Mine helped lead to the friendly takeover agreement that the company reached with Hudbay Minerals Inc., the paper said.
The following comes from Save the Scenic Santa Ritas' press release on the impending Hudbay takeover of Augusta Resource Corp.:
But stock prices jumped for Rosemont Copper's parent company.
Proposed Rosemont Mine now has more money to fight opponents
For the record, we're posting excerpts from news releases on the Hudbay Minerals Inc. -- Augusta Resource Corp. takeover agreement from Augusta and Rosemont Mine opposition group Save the Scenic Santa Ritas. Hudbay's news release was identical to Augusta's.
Hudbay Minerals Inc. and Augusta Resource Corp. announced early today that the two companies have agreed on a friendly takeover bid for the British Columbia company that owns the proposed Rosemont Mine site near Tucson.
Last Wednesday, the New York Times ran a followup story to our article of a week ago -- June 15 -- about warnings from the Central Arizona Project that CAP shortages could hit Tucson and Phoenix a lot sooner than most authorities had previously thought -- in as soon as 5 to 8 years.
Today's New York Times ran an article following the Star's piece Sunday, in which Central Arizona Project officials warned that Tucson and Phoenix could face CAP shortages as soon as five to eight years from now.
My story in Sunday's paper warning of the potential consequences to the Central Arizona Project, Las Vegas and Hoover Dam power supplies from a steadily dropping Lake Mead got a lot of reaction. But I want to say that in reality, we weren't the first media outlet to cover this, although ours…
The Santa Cruz River hasn’t flowed through Tucson in 70 years — but some local officials would like to change that.
For the first time, the state agency that operates the multibillion-dollar Central Arizona Project warns that water shortages could hit Tucson and Phoenix as soon as five years from now.
A planned project for 7,000 homes and apartments in Sierra Vista now sits in legal limbo due to a judge’s ruling overturning state approval of it.
Kathleen Ferris, who helped shepherd into existence the pioneering 1980 Groundwater Management Act, is now director of the Phoenix-based Arizona Municipal Water Users Association. The association is a non-profit corporation, whose Board of Directors includes mayors and council members repres…
In a big victory for San Pedro River-lovers, a Superior Court judge overturned a state ruling that had approved a project of 7,000 homes in the Sierra Vista area.
Rosemont Copper has criticized a lawsuit from the opposition group Save the Scenic Santa Ritas that challenged a state air quality permit for the proposed copper mine.
More than four years after buying the old Twin Buttes copper mining site south of Tucson, Freeport McMoRan Copper & Gold Inc. still has no plans for reopening it, a spokesman says.
Duncan and Connie Creed say they no longer can enjoy the glow of sunsets in their backyard like they could when they moved into their Green Valley house 11 years ago. The reason, they say, is the stand of mine tailings just west of their home that towers like a huge mesa over the community.
A community group and a retired air-pollution scientist filed separate lawsuits Wednesday challenging Arizona’s approval of an air-quality permit for the proposed Rosemont Mine.
In the Business section of today's Star print edition, I have a story comparing the 1st quarter 2014 financial reports of Augusta Resource Corp., which currently owns the proposed Rosemont Mine site, and Hudbay Minerals Inc., which seeks to acquire Augusta in a hostile takeover.
The difference in size and scale between the current owners of the proposed Rosemont Mine and its suitor is staggering, their financial reports show.
A longtime mining analyst who follows Augusta Resource Corp. says he thinks Hudbay Minerals Inc. has a better chance than before to win its hostile takeover effort to buy out Augusta--Rosemont Copper's parent company. The analyst also says Augusta may have to find additional external capital…
The federal government formally announced Friday that it will restart reviews of the proposed Rosemont Mine’s impacts on eight endangered species including the ocelot.
The recently released letter from the U.S. Fish and Wildlife Service regarding the prospect of additional endangered species reviews for the Rosemont Mine has generated the usual flurry of statements and counter-statements from the two sides of the issue.