David Doll of the University of California Division of Agriculture and Natural Resources, examines an almond tree. High almond prices prompted many California growers to put in new plantings of the nut tree in recent years. But those prices have now fallen about 20 percent.
Ezra David Romero/Valley Public Radio
<img src="http://media.npr.org/assets/img/2015/04/11/mugs_edit_sq-5632df8f4aa1e1b0166fd3f96af1b2106bbe87c3-s100.jpg" class="img100" title="Almonds, cows, and consumers have all been named as leading culprits in California's water crisis." alt="Almonds, cows, and consumers have all been named as leading culprits in Calif…