Guest Column: How would an extra month of 100-plus-degree days feel?

is a professor at the University of Arizona.

Guest Column: How would an extra month of 100-plus-degree days feel?

Climate change is not just happening in some far and distant place. It's happening now, right here in Arizona.

Arizona Appeals Court dismisses climate-protection suit; no basis for legal challenge, it says

PHOENIX - The state Court of Appeals will not order Gov. Jan Brewer to take action to reduce greenhouse gases linked to climate change.

Phoenix's too-hot future

A dust storm known as a "haboob" restricts visibility in downtown Phoenix. The overheated weather of the future is likely to send the city more violent dust storms, packed with ever greater amounts of energy.

Phoenix's too-hot future

If cities were stocks, you'd want to short Phoenix. Of course, it's an easy city to pick on. The nation's 13th-largest metropolitan area crams 4.3 million people into a low bowl in a hot desert, where horrific heat waves and windstorms visit it regularly. And it depends on an improbable infr…

AZ bill would let teachers dismiss global warming

PHOENIX - Saying students are getting only one side of the debate, a state senator wants to free teachers to tell students why some believe there is no such thing as human-caused "global warming."

Report: Climate to stress crops

Agriculture is a $9 billion industry in Arizona, but it is vulnerable to the increased heat and drought likely to accompany climate change, says a federally commissioned report.

Report: Climate to stress crops

Agriculture, a $9 billion industry in Arizona, is vulnerable to the increased heat and drought that's likely to accompany continued climate change, said a new federally commissioned report.

Climate-change group presses Tucson Electric on coal

A local environmental group pressed its demand that Tucson Electric Power Co. stop burning coal at a local power plant today, with a lunchtime demonstration and leafleting at the downtown headquarters of TEP parent UNS Energy Corp.

Fitz Blog: Weather report

With this year’s property tax assessment my home is worth just about what I owe on my mortgage. I’m going to have a lot in common with the redneck who ignores the “Do not enter when flooded” sign. We’re both under water and we have no one to blame but ourselves.

Is drought a side effect of Southwest warming?

The 50 years ending in 2000 were the Southwest's warmest for at least 600 years, underscoring studies showing that human-caused climate change is heating up the region.

Science briefs

UA scientists focus of PBS special Sunday

Climate change topic of UA lecture

You can learn “What Americans Really Think About Climate Change” at 4 p.m. Thursday from Jon Krosnick, a social psychologist from Stanford University who has conducted studies on Americans’ personal and political views about climate change for the past 15 years.

Tucson showing how to get ready for warmer times

With the Southwest already known as ground zero for climate change, an international environmental group says Tucson also sits on the front lines of places trying to prepare for and fight it.

Colorado River flow expected to be down

The Colorado River, volatile as ever, is expected to run far below normal this year in Arizona following a near-record high 2011 runoff, authorities said Wednesday.

UA scientist: No climate disaster

Big problems lie ahead here due to climate change - but not disaster.

Military taps UA expertise to cope with impact of climate change

Last year's Monument Fire, seen from an evacuation area near Sierra Vista, burned more than 30,000 acres and came uncomfortably close to Fort Huachuca before it was contained.

Military taps UA expertise to cope with impact of climate change

Scientists have long worried about the consequences of climate change. Now the Pentagon is fretting, too, and turning for help to the University of Arizona.

Climate change focus of UA talk, concert

Up for a bit of a discussion? Sure you are, and here’s a compelling one: “Vanishing Islands: Culture and Climate Change,” a panel discussion co-sponsored by UApresents and the Institute of the Environment at the University of Arizona. It’s an hour of important talk about an important subject…

She's back — La Niña reappears in the Pacific Ocean

Who can forget this past February's record low evening temperatures and burst water pipes? According to the National Oceanic and Atmospheric Administration, we should prepare for more of the same this winter.