Image Credits: Bert Kaufmann, Flickr
NASA’s Jet Propulsion Laboratory has sounded a stark warning over California’s sustained drought, publishing its latest findings where satellite surveys show a rapidly depleting groundwater supply.
And with California as the United States’ most valuable agricultural state, and thus key to America’s food supply (and much of the world’s as well) that could mean drastic consequences for food commodity prices and potential shortages.
A new Nature Climate Change piece, “The global groundwater crisis,” by James Famiglietti, a leading hydrologist at the NASA Jet Propulsion Laboratory, warns that “most of the major aquifers in the world’s arid and semi-arid zones, that is, in the dry parts of the world that rely most heavily on groundwater, are experiencing rapid rates of groundwater depletion.”
The groundwater at some of the world’s largest aquifers — in the U.S. High Plains, California’s Central Valley, China, India, and elsewhere — is being pumped out “at far greater rates than it can be naturally replenished.”
The most worrisome fact: “nearly all of these underlie the word’s great agricultural regions and are primarily responsible for their high productivity.”
NASA’s sattelite map shows the loss of weight height just in the past three years:
According to NASA:
“California’s Sacramento and San Joaquin river basins have lost roughly 15 km3 of total water per year since 2011 — more water than all 38 million Californians use for domestic and municipal supplies annually — over half of which is due to groundwater pumping in the Central Valley.”
Yes, of course, California is a desert. So, that isn’t helping things. But it was reformed into a thriving economy by controversial and historically corrupt irrigation scheme, and is now vital to U.S. food security.
The result of these dangerous conditions is, not surprisingly, higher commodity prices – including food and water – creating higher profits for the companies that provide these services. Privatized water could drive prices even higher.
There are storm clouds gathering, so to speak, but they aren’t bringing rain.