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Water Crisis Looms For Thirsty Planet;BBB hopes shes not alive when the world wide water wars start

 
 
Reply Tue 24 Apr, 2012 12:07 pm
Water Crisis Looms For A Thirsty Planet
April 24, 2012
by Sheril Kirshenbaum - NPR

Access to fresh water is not a given for many, including this Indian girl carrying bottles of drinking water filled from a municipal tap two kilometers from her village.

Twelve years ago, I was an intern working with the American Museum of Natural History on marine protected areas. One afternoon, after reading mountains of articles that documented the declining state of fisheries and reefs, I naively proclaimed that ocean conservation must be the most depressing field in the world of science.

"Not at all," countered my mentor. "It's the freshwater scientists that have it the worst." He was right.

At first this notion seems counterintuitive. Earth is covered in H2O, after all. Yet, in reality, only 2.5 percent of it is fresh and two-thirds of that happens to be frozen. So, sure, there's water everywhere on this planet; but very little of it is actually available to use.

According to Jay Famiglietti, director of the University of California's Center for Hydrologic Modeling, when it comes to the future of water, "we are, on many levels, completely and totally hosed."

His is a very well informed opinion. Famiglietti has been tracking water availability around the world using NASA satellites for over 15 years. His team has not only documented changes in water on land, they've also discovered something deeply disturbing: the water cycle itself is changing.

As temperatures rise due to climate change, evaporation and precipitation have increased. This means that the atmosphere holds more water. Unfortunately, the condition is anticipated to lead to storms and floods of increased severity in some parts of the world, with prolonged and more intense droughts elsewhere.

"Extreme extremes," says Famiglietti, which could lead to greater conflict over the scarce resource.

But is the looming water crisis "news?" Of course not. Long before satellites were tracking the problem, prior generations of scientists and policymakers realized water security was a big deal.

Over half-a-century ago, President John F. Kennedy challenged the United States to invest in desalination technology to "competitively—at a cheap rate—get fresh water from salt water." He surmised that success would dwarf every other scientific accomplishment because it would bring men and women around the world out of poverty, while vastly improving human health.

That was 1961 and Kennedy's plea for freshwater didn't make the history books because we failed to follow through on it, unlike the seemingly outlandish challenge he made one month later. Most Americans do remember the call to put a man on the moon because it took less than a decade to make it happen. Water here on planet Earth never became a headlining priority.

That is one of many missed opportunities. Decades later, with more than 7 billion people milling about the planet, one-in-six do not have access to clean drinking water. According to the United Nations, this leads to over 1.5 million preventable deaths annually. Further, waterborne illnesses are associated with 80 percent of disease and mortality in the developing world. Many of the victims are children.

So, freshwater research can be depressing. The good news is that there is still much we can do about it.

Looking ahead, the most recent estimates project that Earth will host 10.1 billion people by 2100. This means more demand for a diminishing resource. So let's get serious about finding ways to save more and waste less.

How? The solutions aren't rocket science. What it will take is a dedicated effort across people and boundaries.

Considering that 70 percent of all freshwater used worldwide goes straight into agriculture, we should be focused on creating incentives for more efficient irrigation practices. That alone would have an enormous impact at home and worldwide. Concurrently, increased federal investment for research toward developing more drought tolerant plants has the potential to carry us even further. And, most importantly, we need policymakers to address the political and legal hurdles related to water regulation.

The benefits of better water conservation would ripple out. We'd not only save human lives globally, but less agricultural runoff means healthier oceans and coral reefs as well. In other words, marine biology would get a little less depressing too.
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roger
 
  1  
Reply Tue 24 Apr, 2012 12:26 pm
@BumbleBeeBoogie,
With BBB in an area depending on a depleting aquafier to make up for shortfalls in the flow of the Rio Grande, she is right to be concerned.
Butrflynet
 
  1  
Reply Tue 24 Apr, 2012 08:27 pm
@roger,
I had to drive over the Rio Grande a couple days ago via the Montano overpass. It is still early Spring and the river bed is already mostly sand and a few puddles. Can't count on snow runoff, that's been long gone.

http://www.krqe.com/dpp/news/business/irrigators-face-serious-water-shortage

Quote:
Irrigators face serious water shortage
Farmers told to expect cutbacks, possible cut offs

Updated: Tuesday, 24 Apr 2012, 2:45 PM MDT
Published : Tuesday, 24 Apr 2012, 2:45 PM MDT

Bill Diven Bill Diven

ALBUQUERQUE (KRQE) - Water is so short in the Rio Grande some or all irrigators could find themselves cut off if stored supplies run out, the Middle Rio Grande Conservancy District warned Tuesday.

The spring runoff has been less than the already low forecasts, and 1/3 of that flow is being lost to evaporation, earlier irrigation upstream and the lack of spring rains, according to the district.

"We may have to begin releasing water from storage at El Vado Reservoir six weeks earlier than normal," MRGCD Hydrologist David Gensler said in a statement released by the district. "This could result in the district exhausting its stored water by mid-August."

El Vado Lake is on the Rio Chama in northwestern Sandoval County and feeds into the Rio Grande at Española

District directors have said water will be delivered in strict accordance with priority rights. Staff also has been told work with irrigators on conservation measures.

With luck, conservation and rain, water supplies may be stretched to supply all irrigators, Gensler said.

But should extreme conservation measures be needed, the first to be cut off would be Water Bank users followed by nonpueblo irrigators and then pueblo farmers.

And if the district drains its stored supply, the natural flow of the Rio Grande still could be diverted to canal systems although it may not be sufficient to supply all, and perhaps none, of the irrigators, according to the district.

Many farmers have irrigation wells they can use although that drives up the costs of production eroding or erasing profits.

The conservancy district supplies water to about 70,000 acres of cropland along 150 miles of the Rio Grande from Cochiti Pueblo on the north to the northern bounday of the Bosque del Apache National Wildlife Refuge in Socorro County.
roger
 
  1  
Reply Tue 24 Apr, 2012 09:15 pm
@Butrflynet,
It's those irrigation wells in the next to last sentence I worry most about. If all useage came direct from river flow, including dams, there isn't much chance of current useage getting too far of current supply.

Your first aquafier used to be so close to the surface that the early settlers used to dig a hole just deep enough to hold a wooden barrel, which served as the well casing.
Rockhead
 
  2  
Reply Tue 24 Apr, 2012 09:19 pm
@roger,
I don't know how it is down there, but there is some seriously irresponsible irrigating going on here. all because of corn for ethanol.

our water table is dropping scary fast now...
roger
 
  2  
Reply Tue 24 Apr, 2012 09:25 pm
@Rockhead,
In a completely different watershed, but only 200 miles from Albuquerque you see great truckloads of gigantic hay bales heading south, probably to Texas which has it's own water problems.

Now, when you see irrigated land used for nothing but hay, you should automatically assume you are seeing the results of highly subsidized irrigation water and even irrigation systems. NAPI (Navajo Agricultural Products Industries) is a simply huge exportor of hay.
farmerman
 
  1  
Reply Wed 25 Apr, 2012 07:45 pm
@roger,
this is an area where renewable energy systems can excel . Using solar DC can be used to power up a "Permacep" process desal plant and almost have the energy system at a greatly reduced cost.

In some cities of the US, public water is already .015$ per gallon and that is still waay cheaper than some countries where its 1$ or more a gallon. Desal is a big consumer of energy and, by using solar power, itll be like .05 a gallon.

However, even though theres plenty of water to go around, its the distribution systems that are poor in many countries and the possibilities for quick upgrades or creation of infrastructure arent looking too good
Butrflynet
 
  1  
Reply Wed 25 Apr, 2012 08:06 pm
@farmerman,
It would also help ease the water shortages if houses were plumbed by default with diverter valves and plumbing to outdoor faucets so you can divert washing machine rinse water to the gardens, or shower water to the gardens, or bathroom shower and kitchen sink water that is wasted while waiting for water to either heat up or cool off.

An awful lot of good and useful gray water just goes down the drain.

I thought about a rain barrel here, but we get so little annual rain here that it wouldn't really help much.
hawkeye10
 
  1  
Reply Wed 25 Apr, 2012 11:58 pm
@Butrflynet,
Quote:
It would also help ease the water shortages if houses were plumbed by default with diverter valves and plumbing to outdoor faucets so you can divert washing machine rinse water to the gardens, or shower water to the gardens, or bathroom shower and kitchen sink water that is wasted while waiting for water to either heat up or cool off.

An awful lot of good and useful gray water just goes down the drain.


That would suck, it would not take long for me to kill my flowers with bleach under your scheme.
roger
 
  1  
Reply Thu 26 Apr, 2012 12:13 am
@hawkeye10,
Golf courses in Santa Fe buy grey water from the city for their grass. It must be sufficiently dilute, or the bleach must have dissapated before application.
hawkeye10
 
  0  
Reply Thu 26 Apr, 2012 01:02 am
@roger,
Quote:
Greywater containing sodium, bleach or borax can damage plants. For this reason, water from automatic dishwashers should not be used for irrigation.
Water used to wash cooking utensils in the sink may contain grease, fats and oils, and is not acceptable for greywater use.
If you plan to use water from your washing machine, avoid liquid fabric softeners and detergents with softeners. Use a dryer fabric softener sheet instead.

http://aces.nmsu.edu/pubs/_m/m-106.html

Way too much trouble for me. I believe that large grey water systems actually do process the water a bit, which would add a lot of cost to home systems. Using waste water in your yard is no where near as easy as Butteryfly seems to think.
farmerman
 
  1  
Reply Thu 26 Apr, 2012 03:33 am
@hawkeye10,
Many countries use "Dual water systems" where what buterflynt suggested is already being done. AS far as quality problems with grey water, it takes very little treatment to equalize much household grey water. Usually just storage and aeration will get rid of chlorine and reduce concentrations of others. In India, the dual water systems recycle the potable water to use for black water flushing and keeping drains open. Im not sure that grey water is used for irrigation .
It could work and Ill bet we will be doing it in another 10 to 20 years.

On the other hand:

ALready,new fire codes are being hammered through certain states to require sprinklers even in private home construction. That would be water intensive because the system always has to be kept full with about 500 gpm for like 2 hours flow and the best way to achieve that is with initial diversion and storage. I saw one development plan that had 35 houses , each hooked up to a large storage tank (Underground wet well). And the tank was loaded with eough water to rech all houses and based on a probability that there may be up to 2 fires at one time. SO 1000 gal per minute for 2 hours is 120000 gallons of water.
I hope this doesnt pass nationally cause its a bigass waste of water IMHO

0 Replies
 
Butrflynet
 
  1  
Reply Thu 26 Apr, 2012 09:21 am
@hawkeye10,
If you are living in a place (Albuquerque) that is lucky to get two inches of rain per year, going to the trouble to divert usable gray water to the gardens is worth it.

All it takes is a bit of time to educate the folks about when to divert to the gardens and when to send water down to the city sewers.

roger
 
  1  
Reply Thu 26 Apr, 2012 11:18 am
@Butrflynet,
Wow! I think we are promised an average of 11 whole inches per year. When you are an inch below the moving average, you've got a major problem.
0 Replies
 
 

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