As California's drought drags on, its almond industry has come under scrutiny. As you've probably heard by now, almonds use a lot of water — about one gallon per nut. Most growers are relying on groundwater even more this year, because their surface water has been cut off. But that brings a different problem all together: too much salt.
Not the salt added to make roasted almonds savory, but salt in groundwater – which is killing trees.