One thing to point out: this particular case was the response to a crisis. "But in the 1980s, disaster struck. Growers over pumped the coastal groundwater, all

One thing to point out: this particular case was the response to a crisis. "But in the 1980s, disaster struck. Growers over pumped the coastal groundwater, allowing saltwater from the Pacific Ocean to seep in below their fields, up through the roots of the berry crop." It doesn't seem likely that a similar change would happen elsewhere without a similar crisis.