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Accelerating Icelandic glacier loss causing earth to rise faster, says UA study

The earth's crust is rising faster in central Iceland each year, thanks to the accelerated retreat of melting glaciers from global warming, says a new study led by University of Arizona researchers.

January 30, 2015 2:19 pmLoading…

Record-setting warm year in Tucson seems "consistent with" climate change projections, UA scientist says

No climate scientist worth his acidifying sea salt will speculate on whether one year of record warm weather is due to global warming or other forces of human-caused climate change.

January 02, 2015 10:42 amLoading…

A Colorado River Basin shortage did occur this year -- in New Mexico

While the first shortage of the Central Arizona Project has been delayed a couple of years by a groundbreaking, three-state water conservation agreement, New Mexico's San Juan-Chama water diversion project, which serves farmers and the city o…

December 29, 2014 11:41 amLoading…

Lower gas prices: researchers debate their impacts

In today's Star, I have an article looking at some of the real and potential environmental impacts of the recent implosion in gasoline prices in Tucson, all of Arizona and across the U.S.: more driving, more SUV sales and more suburban sprawl.

December 28, 2014 12:00 amLoading…

Iron runoff contamination from Patagonia mines was "way above any standards": feds

Levels of iron that created orange runoff from two old Patagonia-area mines this fall (September-October 2014) were very high, "way above any standards," says a federal scientist.

December 27, 2014 4:00 pmLoading…

How California got on board for the water deal

One of the more remarkable accomplishments in the new three-state water agreement to backstop the declining Lake Mead was California's very presence in the negotations.

December 21, 2014 12:40 amLoading…

The greening of the Colorado River Delta

A burst of new water this spring transformed the Colorado River Delta from a mud flat into a burgeoning green belt, photos and satellite images show.

December 17, 2014 5:01 pmLoading…

New wolf proposal conflicts with never-released recovery plan, enviros say

A new federal proposal to manage imperiled Mexican wolves runs counter to what scientific advisers urged the feds to do two years ago, environmentalists say: let them run wild north to the Grand Canyon and beyond.

November 25, 2014 5:16 pmLoading…

What should Tucson do about big water using neighborhoods?

It's easy to disparage a neighborhood or subdivision that uses a lot more water than the average. But what do you do about it?

November 15, 2014 11:50 pmLoading…

Tucsonans love free water, survey concludes

Yep, you got it. Give people a rebate for buying cisterns or other water harvesting systems to capture rainfall for use on their landscapes or gardens without paying for that, and they're overjoyed.

November 02, 2014 12:00 amLoading…

A gray wolf or a hybrid near the Grand Canyon? Authorities say they don't know

A gray wolf or a hybrid near the Grand Canyon? Authorities say they don't know

Authorities are trying to figure out if a wolflike animal discovered near Grand Canyon National Park is an endangered gray wolf from the Rocky Mountains or a wolf-dog hybrid.

October 30, 2014 3:59 pm Photos

Photos

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Patagonia's orange sludge earns a mention in a national investigative piece

While Patagonia residents and officials grapple with pollution from long-closed mines in their environs, this hard-hitting piece from the Center for Investigative Reporting takes a national look at the  problems associated with abandoned mines.

October 22, 2014 11:09 amLoading…

Harvesting guru Lancaster strikes it water-rich during big storms

In his own blog, water harvesting advocate and author Brad Lancaster tells how he was able to divert water running down his street to transform a 5-year storm during September's heavy rains into the equivalent of a 1,000-year storm's worth of…

October 22, 2014 10:50 amLoading…

Ozone standard clock ticking again for Tucson and the U.S.

The question of whether to tighten federal standards for the pollutant ozone is knocking on the door once more.

October 09, 2014 4:44 pmLoading…

Perk up your plants with this fast fix

Perk up your plants with this fast fix

This time of year, your tomatoes are tired, your squash is sulky — even the peppers are petering out.

September 08, 2014 2:45 pm Photos

Photos

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Enviros don't think EPA's "Better than BART" plan is truly better

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 pla…

July 29, 2014 10:58 amLoading…

While our monsoon roars, UA's Overpeck tweets on the drought

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 …

July 15, 2014 7:22 pmLoading…

Abu Dhabi, here we come

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.

July 14, 2014 4:47 pmLoading…

Official: Phoenix could survive future CAP shortage

Phoenix won't run dry if the CAP runs short, official says.

June 25, 2014 1:21 pmLoading…

Rosemont permitting delays led to Hudbay takeover agreement, Augusta board chairman tells Canadian paper

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…

June 24, 2014 5:38 pmLoading…

SSSR release on the Augusta-Hudbay agreement

The following comes from Save the Scenic Santa Ritas' press release on the impending Hudbay takeover of Augusta Resource Corp.:

June 24, 2014 8:15 amLoading…

Augusta, Hudbay's statement on the Rosemont Mine takeover agreement

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 identica…

June 23, 2014 6:44 pmLoading…

Hudbay, Augusta agree to friendly takeover

Hudbay, Augusta agree to friendly takeover

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.

June 23, 2014 7:46 am Related Loading…

NY Times on the Central Arizona Project and shortages

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 previous…

June 22, 2014 12:11 amLoading…

About this blog

Star reporter Tony Davis covers topics in this blog that you have read under his byline for more than 30 years in the Southwest: water, growth, sprawl, pollution, climate change, endangered species, mining, grazing and traffic.

To reach Tony call 806-7746 (office) or 349-0350 (cell) or write him at tdavis@tucson.com.

Tony Davis tweeting from City Council

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