By Naoki Nitta for Grist.Broadcast version by Suzanne Potter for California News Service reporting for the Grist-Public News Service Collaboration Standing under a shady tree drooping with pomegranates late last year, Brad Simmons, a retired metal fabricator who has lived in Healdsburg, California, for 57 years, showed off his backyard orchard. Along with the apple, cherry, and peach trees, he s packed one pear tree, two lemon trees, and a century-old olive tree into his bungalow s compact garden. Of course, the small grove requires plenty of water - an increasingly scarce resource in a state that continues grappling with a historic drought despite recent torrential rains. .