Still, Huckleberry says, there"s much to learn from the Hohokam and their ancestors, who utilised canal irrigation for 3,000 years. "That, to me, is the definition of sustainable," he said. "They learned how to sustainably farm, to manage water, to not destroy their soils in a way that is commendable and might give us insight into how we might deal with the current plight. I think one of the key lessons is that you don"t put all your eggs in one basket; you plan for the worst, and you diversify your strategies."