The new Dean of the School for Environment & Sustainability, Jonathan Overpeck, discusses how climate change is leading to a rapid decline in Arizona’s main source of water: the Colorado River and what this means for the residents of this area.  “At some point we will need to make the choice between water for cities and water for agriculture.”

Host of Metro Week (Arizona Public Media) Vanessa Barchfield sits down with Overpeck to talk about how that could change life as we know in Arizona and across the American Southwest. (16:30)  At 25:00 Dean Overpeck talks about his new role and the opportunity for impact at the University of Michigan.