… As Dubai chocolate’s popularity soars, so has the demand for this unassuming nut that for decades has quietly thrived in the heat of the Central Valley and provided a livelihood to generations of rural and immigrant communities. But while the state’s pistachio growers and chocolatiers have big dreams of what could come from this culinary phenomenon, California faces a dryer, hotter future that could soon put all of that to the test. … And water from the Sacramento-San Joaquin Delta — the only other source of water for many pistachio farms — is controlled by federal regulators that cut water deliveries if they threaten the survival of wildlife in the Delta.

Other pistachio water use news:

• Business Insider: The US once put a 241% tariff on pistachios — and America went nuts for them​
• Ag Alert (California Farm Bureau): Food trends boost pistachio market as production rises