June 25

Ayala and Clipman bring Duo Sonora back to ASA

Now in their sixth year performing as Duo Sonora, Gabriel Ayala and Will Clipman will combine their musical talents onstage Tuesday for a concert beginning at 11:30 a.m. at the Arizona Senior Academy.

Ayala, a Native American Music Award winner and classical guitar virtuoso, has an affinity for diverse musical genres. Spending much of the year touring as a soloist, he performed at one of President Obama's inaugural balls in Washington, D.C., in January and is planning a performance in Cape Town, South Africa, later this year. His recent exploration of expanded ensemble formats led to the Memorial Day weekend debut of the Gabriela Ayala Quintet at the opening concert of the Tucson Jazz Society's Summer Series.

Grammy nominee and pan-global percussionist extraordinaire, Clipman draws on a palette of more than 100 indigenous instruments. His recent schedule has taken him to the Musical Instrument Museum Theatre in Phoenix where he appeared with Native American flutist R. Carlos Nakai, and to Northern California with the world chamber fusion ensemble Coyote Jump.

Despite their divergent schedules, Ayala and Clipman enjoy the rare opportunities to perform together. Their ASA appearance will be their last scheduled event in 2013, so a large crowd is expected and non-members of the Arizona Senior Academy are urged to make reservations.

June 26

Convincing skeptics about global warming

Gregg Garfin is a UA scientist with a political agenda. His job is to make politicians, planners, business leaders and the general public understand what he and his fellow scientists are learning about climate change.

Garfin will discuss his work in a talk titled "Is Climate Change Turning Tucson Into Yuma?" His presentation will begin at 3:30 p.m. Wednesday in the Great Room of the Arizona Senior Academy.

As deputy director for science translation and outreach at the University of Arizona Institute of the Environment, Garfin's duties include fostering dialogues between scientists and stakeholders, garnering stakeholder input to research activities, disseminating research results and conducting workshops.

He was project manager and lead editor of the Climate Assessment for the Southwest project, designed to identify and evaluate climate impacts on human and natural systems in the Southwest.

The conclusions brought forth in that project, drawn from 120 participating climate experts, are sobering: Climate-generated declines in soil moisture, late-season snowpack and river flow will reduce water availability throughout the Southwest. Hotter temperatures and less soil moisture will create longer and more destructive fire seasons. By mid-century, Tucson will have a projected additional 34 days a year (an extra month) of 100-plus-degree days and 25 more 110-plus-degree days.

"Our future prosperity," Garfin warns, "will evaporate along with our water supplies" - unless he and other scientists can convince decision-makers that these threats are real and must be addressed.

Garfin says the field he calls "science translation" has taken on new urgency in the past decade, but is actually well grounded in past practices.

"You can trace it back more than a century, to when the Department of Agriculture first set up Extension Service bureaus across the country to help farmers utilize the most up-to-date scientific methods of agriculture," he said.

He tries to avoid confrontations with those who dispute the scientific view that humans are major contributors to climate change. Instead, he uses established scientific data, including paleo-climatic data based on tree-ring dating, to help decision-makers understand the effects of climate change.

"As long as we don't discuss attribution," Garfin said, "I can pretty much have productive conversations with everyone."

About Academy Village

• Events are held in the Great Room of the Arizona Senior Academy Building adjacent to the Academy Village Community Center, 13715 E. Langtry Lane.

• Nonresidents who want to ensure priority seating can make reservations by emailing info@arizonasenioracademy.org or calling 647-0980.

• To learn more about the academy, go to www.asa-tucson.org online.

• Visitors can buy lunch at the Academy Cafe across the courtyard from the Arizona Senior Academy Building. The cafe is open 11 a.m.-2 p.m. Monday-Friday. Prices range from $4.50 to $9.50. For more information call the cafe at 647-0903.

• Academy Village is an active-adult community off Old Spanish Trail six miles southeast of Saguaro National Park East. Its residents support the Arizona Senior Academy, a non-profit charitable organization whose mission includes offering free public concerts and lectures.

Leslie Nitzberg Mike Maharry