Friday, August 1, 2014

Groundwater Irrigation in the Crosshairs


Eric Holthaus fires a warning shot before the coming drought-caused California water war:
Exceptional drought now covers a majority of California, from Los Angeles to Mount Shasta, including the whole of the vast Central Valley, where America grows the bulk of dozens of agricultural commodities.
According to Brad Rippey, author of this week’s Drought Monitor report, the drought is creating lasting consequences. “California is short more than one year’s worth of reservoir water, or 11.6 million acre-feet, for this time of year.” For perspective, 11.6 million acre-feet of water is equivalent to 3.8 trillion gallons—enough to provide eight glasses of drinking water per day for everyone on Earth for three years. That’s a lot of water....
 Last week, a separate study by NASA and the University of California-Irvine found that more than 75 percent of Western water loss over the last 10 years came from excessive groundwater pumping. California is the only state that doesn’t restrict groundwater use, though state lawmakers are proposing legislation motivated by the worsening drought to change that. In my Thirsty West trip through the state earlier this year, it was clear that the continued expansion of politically powerful industrial agriculture is worsening the state’s water woes.
Should the drought get even worse over the coming months—which it may, now that a super strong El NiƱo is off the table—there isn’t any room left to upgrade it now that the official drought scales are maxed out. The painful phase of this drought has begun. It’s time for sacrifices.
Farmers: You’ve had your chance. It’s time to submit to restrictions on groundwater pumping, if only to ensure your future survival in the state. Cities: Prepare to pay more for food as a result. It’s a best-case tradeoff in a worst-case scenario.
 Barring a miraculous burst of precipitation, this drought may change California agriculture forever.  The status quo is entirely unsustainable, and big changes are going to be on the way.

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