The benefits of nuts as sources of nutrients and protein are well-known. But any increase in nut production, as per the recommendations of the infamous EAT-Lancet reference diet, must take into account water sustainability, warns a study which claims that worldwide, 74% of irrigated nuts are produced under water stress.
In a new publication in the journal Global Food Security, scientists from the JRC, the University of Twente and the University of Nebraska quantified the amount of global irrigated nut production under water stress.
They found that 74% of irrigated nuts are produced under water stress (of which 63% are under severe water stress), throughout many regions of the world, most notably in India, China, Pakistan, the Middle East, the Mediterranean region and the US.
Groundnuts account for the largest quantity (8.7 million tons per year) produced under water stress, with hotspots in China and India, the researchers discovered.
Of the treenuts, almonds account for the largest quantity (1 million tons per year) produced under water stress, of which 60% are produced in California, followed by walnuts (0.67 tons per year), pistachios (0.36 tons per year) and hazelnuts (0.28 tons per year).
In the Mediterranean basin, large amounts of almonds and hazelnuts are produced under water stress, including in Spain, Italy, Greece, Turkey, Israel, Lebanon, Libya, Tunisia and Morocco.
11-fold increase global treenut production needed to satisfy EAT-Lancet diet
The authors calculated that, if the global population in 2050 were to adhere to the recommendations of the EAT-Lancet reference diet, global treenut production would have to increase more than 11-fold, and groundnut production almost 7-fold.
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February 20, 2020 at 10:01PM
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Nut production 'needs to occur in a water-sustainable way': study - FoodNavigator.com
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