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  • President Robert N. Shelton Leaving UA to Head Fiesta Bowl
    Monday, June 13, 2011

    Shelton will assume the leadership role of the Phoenix-based charity effective Aug. 1. In his five years at the UA, Shelton has guided the University to achievement of sound financial management coupled with extraordinary academic success.

    University of Arizona President Robert N. Shelton today announced that he will be leaving the UA to accept the position of executive director of the Fiesta Bowl....

  • Slowing economy doesn't slow greenhouse emissions
    Monday, June 13, 2011

    PRESCOTT - When a University of Arizona climate scientist displayed a chart Saturday showing an exponential increase in greenhouse gas concentrations in the Earth's atmosphere over the past 150 years, his Prescott audience emitted a collective gasp.

    Michael Crimmins, an assistant professor at UofA and Extension Office climate science specialist, first displayed a relatively flat line showing greenhouse gas emissions over a 10,000-year time...

  • UA tree ring research offers hope for wet monsoon season
    Sunday, June 12, 2011

    What if the summer rains don't arrive to drench our desiccated deserts, forests and front lawns?

    It has happened before, although it is not the prediction for this year, nor the normal pattern.

    Wet summers usually follow dry winters.

    Atmospheric scientists trace that to the cooling and warming of the Pacific Ocean - the phenomena known as La Niña and El Niño.

    In a La Niña year, when Pacific temperatures cool, winter rains are...

  • Before Reality TV, Life in an Actual Bubble
    Saturday, June 11, 2011

    The desert vista here is stunning, with saguaro cactuses and rugged hills as far as the eye can see, if only someone would spray some Windex on the glass.

    Long before contestants on “Survivor” were plopped into challenging spots to outscheme and outlast one another, there was Biosphere 2.

    In the early 1990s, two successive groups were sealed inside a giant steel and glass bulb north of Tucson to test their survivability. It was part serious science, with...

  • Snowpack Declines in Rockies Unusual Compared to Past
    Thursday, June 9, 2011

    The researchers evaluated the recent declines using snowpack reconstructions from 66 tree-ring chronologies, looking back 500 to more than 1,000 years.

    The reduction in snowpack in the Rocky Mountains over the last 30 years is unusual compared to the past few centuries, according to a new study that includes University of Arizona researchers.

    Previous studies attribute the decline to unusual springtime warming, more precipitation falling now as rain rather than snow and...

  • What Would Happen If Earth and Mars Switched Places?
    Thursday, June 9, 2011

    Last Saturday, at a workshop organized by the Foundation Questions Institute, Nobel laureate physicist Gerard 't Hooft gave a few informal remarks on the deep nature of reality. Searching for an analogy to the symmetries of basic physics, he asked the attendees to imagine what would happen to our solar system if you suddenly swapped Earth and Mars. He went on to discuss his ideas for explaining quantum mechanics, but I couldn't get my mind off his...

  • Monster wildfire in Arizona: A glimpse of what climate change could bring
    Thursday, June 9, 2011

    Even as the Wallow fire threatens to alter the Arizona landscape for a long time to come, some scientists say climate change may be fueling a trend toward larger wildfires in the American West.

    A wildfire in Arizona that has blackened an area half the size of Rhode Island, prompted the evacuation of some 2,000 people in its path, and is...

  • Around Campus With Robert Shelton: The Campus Arboretum
    Tuesday, June 7, 2011

    Watch video.

  • UA Scientist, Kavli Laureate Meets With President Obama
    Tuesday, June 7, 2011

    Optical scientist Roger Angel and fellow Kavli Laureates met with President Barack Obama this week in the White House.

    At the White House on Monday, June 6, President Barack Obama met in the Oval Office with the seven U.S. recipients of the 2010 Kavli Prizes – including the University of Arizona's Roger Angel – to recognize and honor their seminal contributions to the three fields for which the prizes are awarded: astrophysics, nanoscience and neuroscience.

  • GMT Travel Time: Have fun while learning at Biosphere2
    Wednesday, June 1, 2011

    If you're looking for a fun summer day trip without using a ton of gas, look no further than Biosphere2, mere miles away from Tucson!

    Oracle, Ariz. (KGUN9-TV) Want to visit the beach on your summer vacation? How about a rain forest or a grassland? You can visit all three in just one day, and on less than a tank of gas.

    Biosphere2 springs from the desert floor at the base of the Catalinas in Oracle. Like the Grand Canyon and Red Rocks of Sedona, it is world-famous but...