NASA: Huge Freshwater Loss In the Middle East
dstates writes with news from NASA about the state of available water in the Middle East. From the NASA article: "'GRACE data show an alarming rate of decrease in total water storage in the Tigris and Euphrates river basins, which currently have the second fastest rate of groundwater storage loss on Earth, after India,' said Jay Famiglietti, principal investigator of the study and a hydrologist and professor at UC Irvine. 'The rate was especially striking after the 2007 drought. Meanwhile, demand for freshwater continues to rise, and the region does not coordinate its water management because of different interpretations of international laws.'" dstates adds:
"Water is a huge global security issue. To understand the middle east, you need to understand that the Golan Heights provides a significant amount of the water used in Israel. Focusing on conflicts and politics means that huge volumes of valuable water are being wasted in the Middle East, and this will only exacerbate future conflicts. Water is a serious issue between India and China. And then there is Africa. U.S. food exports are in effect exporting irrigation water drawn from the Ogallala aquifer. Fracking trades water for energy, and lack of water limits fracking in many parts of th world. Think about it."
It would be nice to think that a regional water shortage would pull these countries together to solve a mutual problem.
And I've recently been in the market for the London Bridge; have one for sale?
Yeah, I know it sounds stupid but Saddam Hussein drained 7,700 sq miles just to try to flush out people during the first gulf war. Before that the British had tried to drain all that fresh water out of there to stop the breeding of mosquitoes. Which, in the near future, is going to be looked back upon with disgust.
I don't think people yet understand or truly appreciate how much destruction they can bring to ecosystems. I wish conservation was given more respect than treating advocates like tree hugging hippies that have no clue about industry and economy. The area between these two rivers was once so lush and full of life that it was thought to be the origin of the Garden of Eden myth.
My work here is dung.
Quite a bit of Israel's water consumption is already either from desalination (domestic) or recycled (agriculture) water. It created quite a spike in the water prices, but otherwise greatly increased Israel's water reserves (the Kineret, as well as a couple of big underground reservoirs, one of them shared with the Palestinians).
Shachar
Ok. Seriously. There is a problem, but there are solutions too. Water conflicts have been around for a long time now in the Middle East since the beginning of civilization tiself.
4500 years ago, the control of irrigation canals vital to survival was the source of conflict between the states of Umma and Lagash in the ancient Middle East. 2700 years ago, Assurbanipal, King of Assyria from 669 to 626 B.C., seized control of wells as part of his strategic warfare against Arabia. In the modern era, the Jordan River Basin has been the scene of a wide variety of water disputes. In the 1960s, Syria tried to divert the headwaters of the Jordan away from Israel, leading to air strikes against the diversion facilities. The 1967 war in the Middle East resulted in Israel winning control of all of the headwaters of the Jordan as well as the groundwater of the West Bank. In these cases, water was certainly an important factor in both pre- and post-1967 border disputes.
But contrast this to cases in Africa, like the Okavango delta (the world's largest inland delta) which through a negotiation by Angola, Botswana and Namibia has received a fresh lease of life. I think the key is how likely countries are to negotiate rather than go to war. The current Middle East does not seem like a place where cooperation can or will replace conflict.
Foregoing moderation to point this out: They do just dump the brine back in the ocean in some places. Where that's done, you get huge zones where nothing lives, because the algae at the bottom of the food chain usually can't live in such radically different salinity than they evolved in. This results in blooms of exotic algae, which tends to produce toxins - think red tide - when exposed to agricultural runoff. Fishermen are usually just run out of town, and if there was a commercial fishery, or the place was popular with out-of-town anglers, you've just killed the jobs involved with both of those.
Since biological processes impact coastal erosion, you may or may not also have to worry about your coastline receding, too - that depends mostly on how lucky you get, I think, but I have no data handy.
Water that is absorbed by the ground and isn't directed into aquifers or similar structures is effectively lost. The rest is lost to the ocean or to evaporation. Granted, you could desalinate the ocean, but then the question becomes what to do with the leftover material, which is an environmental issue unto itself.
You sell it, duh!
Have you priced Sea Salt lately?
We still have operating salt ponds aorund the San Francisco Bay. Often easily identified by their giant piles of salt. Now if they trapped the water evaporated it would be a Win-Win.
These ponds are intended to collect salt, and the water is lost. You can't use a pond for desalination on an industrial scale*. One common method is to boil the water in a partial vacuum to obtain vapor, and discard the brine. Brine's boiling temperature increases the saltier it gets, so at some point it becomes uneconomical to extract the water. Plus transporting brine is easier than bulk damp salt- you just pump it. You could then put the brine in a pond and let nature run its course, but the amount of land required would probably be prohibitive since desalination on useful scales is BIG. It is much easier and cheaper to just pump the brine back to the sea and deal with the environmentalist complaints. Maybe in the future regulations will be stricter but the places that need this water the most are the kind of places that won't care about a saltier ocean.
Incidentally, most desalination processes use large amounts of energy, so that is why the easier water is used up first.
*you can desalinate using a pond or other small body of water on very small scales, but this is not economical on large scales. It is done in survival situations however.
Even those who arrange and design shrubberies are under considerable economic stress at this period in history.