TEHRAN, Iran — While Iran may be known for its massive oil and natural gas reserves to many people around the world, it is also known to some for its top-quality pistachios. Production of the nut in Iran dates to the fifth century B.C. For the last Iranian calendar year (ending March 20, 2016), Iran produced 261,000 tons of pistachios, 50% of which was exported. According to official figures, Iran earned as much as $1.2 billion from the export of 130,000 tons of pistachios last year, making it the biggest source of income in the agricultural sector.
Iran was for a time the unrivaled, leading producer of pistachios, with southeastern Kerman province being the hub of production for so-called green gold. That, however, changed in recent years. In 2012, the United States for the first time became the largest producer and exporter of pistachios, as production declined in Iran, mainly due to water shortages triggered by climate change and uncontrolled use of underground reserves.