Waterless World

A Global Water Crisis Forum


Leave a comment

That Sinking Feeling

We have discussed the massive groundwater depletion that has occurred in California here and here as the drought has lingered for the past four years.  It should not surprise anyone that one of the very visible impacts of the groundwater pumping is that some areas of the state are, quite literally, sinking.  Groundwater takes a long time to replenish, so even if the drought ended yesterday, the sinking would remain.  From the AP:

Vast areas of California’s Central Valley are sinking faster than in the past as massive amounts of groundwater are pumped during the historic drought, NASA said in new research released Wednesday.

The research shows that in some places the ground is sinking nearly two inches each month, putting infrastructure on the surface at growing risk of damage.

Sinking land has occurred for decades in California because of excessive groundwater pumping during drought conditions, but the new data shows it is happening faster.

Mark Cowin, head of the California Department of Water Resources, said the costly damage has occurred to major canals that deliver water up and down the state. In addition, wells are being depleted, he said.

“Because of increased pumping, groundwater levels are reaching record lows — up to 100 feet lower than previous records,” Cowin said in a statement.

The report said land near the city of Corcoran sank 13 inches in eight months and part of the California Aqueduct sank eight inches in four months last year.

Long-term subsidence has already destroyed thousands of public and private groundwater well casings in the San Joaquin Valley. Over time, subsidence can permanently reduce the underground aquifer’s water storage capacity.

As part of an ongoing effort to respond to the effects of the drought, a task force is working with communities to develop short-term and long-term recommendations to reduce the rate of sinking and address risks to infrastructure.

“Groundwater acts as a savings account to provide supplies during drought, but the NASA report shows the consequences of excessive withdrawals as we head into the fifth year of historic drought,” Cowin said in his statement. “

The Department of Water Resources is also launching a $10 million program to help counties with stressed groundwater basins to develop or strengthen local ordinances and conservation plans.

A record low mountain snowpack has increased pumping of groundwater by farmers and other water users. Scientists used satellite images of the Earth taken over time to measure the sinking land.


Leave a comment

Global Aquifers Depleting At Record Rates

According to a recent study by researchers at NASA and the University of California-Irvine, humans are depleting more than half of the world’s 37 largest aquifers at unsustainable rates, and there is virtually no accurate data showing how much water is left.

World water Map


Leave a comment

One Year (and Counting)

From the Los Angeles Times this past Thursday, Jay Famiglietti, the senior water scientist at the NASA Jet Propulsion Laboratory/Caltech and a professor of Earth system science at UC Irvine, sounds the alarm that, while much of the country has experienced a wet winter, California just burrowed deeper into it’s existing water crisis.

Op-Ed: California has about one year of water left. Will you ration now?

Given the historic low temperatures and snowfalls that pummeled the eastern U.S. this winter, it might be easy to overlook how devastating California’s winter was as well.

As our “wet” season draws to a close, it is clear that the paltry rain and snowfall have done almost nothing to alleviate epic drought conditions. January was the driest in California since record-keeping began in 1895. Groundwater and snowpack levels are at all-time lows. We’re not just up a creek without a paddle in California, we’re losing the creek too.

As difficult as it may be to face, the simple fact is that California is running out of water — and the problem started before our current drought. NASA data reveal that total water storage in California has been in steady decline since at least 2002, when satellite-based monitoring began, although groundwater depletion has been going on since the early 20th century.

Right now the state has only about one year of water supply left in its reservoirs, and our strategic backup supply, groundwater, is rapidly disappearing. California has no contingency plan for a persistent drought like this one (let alone a 20-plus-year mega-drought), except, apparently, staying in emergency mode and praying for rain.

In short, we have no paddle to navigate this crisis.

Our state’s water management is complex, but the technology and expertise exist to handle this harrowing future. It will require major changes in policy and infrastructure that could take decades to identify and act upon. Today, not tomorrow, is the time to begin.

Finally, the public must take ownership of this issue. This crisis belongs to all of us — not just to a handful of decision-makers. Water is our most important, commonly owned resource, but the public remains detached from discussions and decisions.

This process works just fine when water is in abundance. In times of crisis, however, we must demand that planning for California’s water security be an honest, transparent and forward-looking process. Most important, we must make sure that there is in fact a plan.

Call me old-fashioned, but I’d like to live in a state that has a paddle so that it might also still have a creek.


Leave a comment

“Last Call at the Oasis”

The global-catastrophe documentary is a thriving form these days, as the apparent unsustainability of human life has emerged as fertile ground for cinematic journalism. Jessica Yu’s “Last Call at the Oasis, is one of the more recent additions to the canon and the content, combining interviews with experts and video evidence of what is happening to water resources across the globe, brings home the catastrophic potential of global inaction.  Though released in 2012, the film remains relevant in a time of increasing drought, water wars and water pollution.

From the New York Times review of the film:

The calm, knowledgeable voices of the experts make “Last Call at the Oasis” especially scary. Nothing is more unnerving than predictions of an apocalypse delivered by a reasonable person in friendly, conversational tones.

The question is whether anyone is listening, and it is a question that always nips at the heels of documentaries like this one. One way the question is answered — or perhaps finessed — is by the optimistic, encouraging tone that tends to sneak in at the end. 

There is also a measure of hope to be gleaned from Ms. Yu’s interview subjects, though less from what they have to say — which is pretty grim — than from their seriousness and dedication.

However frustrated they may be by political paralysis, corporate trickery or plain human stupidity, none of them seem inclined to give up. When they do, we really will be screwed, and we won’t have or need movies like this to tell us so.

Here is the original trailer for the film.


Leave a comment

National Groundwater Awareness Week 2015

With the challenges to our groundwater resources in the U.S., it behooves all of us to recognize and respond to the issue.  To that end, this week is National Groundwater Awareness Week.

ngwa_aware

 


Leave a comment

Groundwater Depletion Goes Mainstream on 60 Minutes

A terrific story late last year by Lesley Stahl on 60 Minutes reporting on the incredible draw down of groundwater in California due to the continuing drought.  Wells are being drilled 24 hours a day to provide water in the Imperial Valley to ensure that it doesn’t turn into a desert.  Also discussed is the “Toilet-to-Tap” technology being used to provide drinking water in Orange County.

 

 


Leave a comment

Global Groundwater Crisis Will Have Far-Reaching Impacts

A recent note from the online journal, Climate Progress, highlights an extended impact from the drought occurring in many regions around the globe.  As surface reservoirs are drawn down as a result of dry conditions, groundwater is extracted at an increasing rate to sustain industry, agriculture and, in some cases, life itself.

An alarming satellite-based analysis from NASA finds that the world is depleting groundwater — the water stored underground in soil and aquifers — at an unprecedented rate.

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.”

GroundwaterDepletion

The most worrisome fact: “nearly all of these underlie the word’s great agricultural regions and are primarily responsible for their high productivity.”

And this is doubly concerning in our age of unrestricted carbon pollution because it is precisely these semiarid regions that are projected to see drops in precipitation and/or soil moisture, which will sharply boost the chances of civilization-threatening megadroughts and Dust-Bowlification.

As these increasingly drought-prone global bread-baskets lose their easily accessible ground-water too, we end up with a death spiral: “Moreover, because the natural human response to drought is to pump more groundwater continued groundwater depletion will very likely accelerate mid-latitude drying, a problem that will be exacerbated by significant population growth in the same regions.”

Certainly, the combined threat of mega-drought and groundwater depletion in the U.S. breadbaskets should be cause for concern and action by itself.

Further declines in groundwater availability may well trigger more civil uprising and international violent conflict in the already water-stressed regions of the world, and new conflict in others.