N-Drip system feeding water into a field of cotton in Tonopah, Ariz. (Photographer: Molly Peters/Bloomberg Businessweek)
(Bloomberg Businessweek) -- On the bone-dry western flank of Arizona, where the Colorado River Basin meets the Mojave Desert, sit 11,000 acres of alfalfa, sorghum, wheat, and Sudan grass belonging to the Colorado River Indian Tribes (CRIT), all destined to be harvested and sold for animal feed. For anything to grow here, irrigation is a must. Less than a quarter inch of rain has fallen so far this year, according to Josh Moore, who m...