Aral Sea Disappearing 156
W33dz writes "The BBC is reporting today that the Aral Sea on the border of the former Soviet republics of Uzbekistan and Kazakhstan has lost half its size and 75% of its volume in the last 15 years. The article includes some stunning pictures from both NASA and the new European Space Agency's Envisat satellite.
This seems especially poignant since the US Government is hosting a summit on a proposed International Earth Observation System in Washington this month (BBC article). The meeting is intended to defend much of the Bush Administration's environmental policy and has an amazing guest list filled with the Who's Who of US politics."
If it's a natural..... (Score:2, Insightful)
For all we know, this could be based on the 13000 year cycle of the earth.
Re:If it's a natural..... (Score:5, Insightful)
If oonly it were. The article says that it's more likely to be due to the excessive and wasteful irrigation systems in the area which take water from the rivers that supply the sea.
Re: If it's a natural..... (Score:4, Informative)
> The article says that it's more likely to be due to the excessive and wasteful irrigation systems in the area which take water from the rivers that supply the sea.
Doesn't our own Colorado River now disappear in the sand rather than flowing into the Gulf of California as it once did, as a result of so many people tapping its water?
Re: If it's a natural..... (Score:4, Informative)
Re: If it's a natural..... (Score:4, Insightful)
That, and the flow is very reduced by that lil thing we call the Hoover Dam.
Re: If it's a natural..... (Score:2, Informative)
<p>
As for the "wasting of water" by the casinos, there is an aquifer (underground river) running under the Las Vegas
Re: If it's a natural..... (Score:2)
http://www.reviewjournal.com/lvrj_home/2003/Jul
You said something about facts?
Re: If it's a natural..... (Score:2)
Re: If it's a natural..... (Score:2)
I'll be sure to shed a tear for you next month when I'm there, driving my rented SUV between the golf course and the fountains of the Bellagio.
Hoover dam is not a vacuum cleaner (Score:2, Interesting)
In a moving river, the water shallow and warmed by the sun, but in a large resevoir, it get's cold. The river water temp is therefore much colder downstream of the dam which screws w
Re:Hoover dam is not a vacuum cleaner (Score:2, Informative)
As far as the water loss, the dams make it possible to use the water from the seasonal floods year round for irrigation. If you take water from a large singl
It's not natural (Score:1, Redundant)
Re:If it's a natural..... (Score:1, Redundant)
Large scale irrigation began in the 1960s and has led to the Aral losing half its area and three-quarters of its volume.
As natural as... (Score:2)
I guess once every 13000 years two countries might actually share....
Greed - The universal constant.
Q.
Not Natural (Score:3, Informative)
Bush? (Score:1, Redundant)
Re:Bush? (Score:5, Funny)
Project Seabuster (Score:5, Funny)
Not wanting to commit things to paper and have them get out through the Freedom of Information Act, the planning went around by word of mouth. Dick Cheney (fresh back from a mission to pollute the canals on Mars) wanted to tell Bush Jr over the phone to get rid of the CCCP (Russian acronym for USSR).
However, the phone cut off mid-conversation, and all Bush could hear Cheney say was "About Russia? I want you to get rid of the C..."
Bush took this partial instruction literally, and proceeded to eliminate the smaller of Russia's internal salt seas.
Re: Bush? (Score:2, Funny)
> What does Bush or his policies have to do with a sea in Asia that started to disappear 10 years before he came to office?
Well, we tried to blame it on Clinton but couldn't make it stick because it predates him too. Can we agree on Nixon, or maybe Johnson if someone steps up to defend Nixon's honor?
Johnson rises (Score:2, Funny)
Study is good. (Score:1, Offtopic)
Re:Study is good. (Score:1)
<P>
So before you go around slamming the Bush administration and big business and global warming please RTFA!
<P>
Re:Study is good. (Score:1)
change the tinfoil in your hat, d00d (Score:2)
No.
Where does a developing nation get its wealth? From trade. Weakening the developed countries means they have less money that can be used to buy whatever it is developing countries have to sell, and a side effect is weakening the currencies of developed countries so the manufactured g
WMD Facility on island (Score:4, Interesting)
They mentioned that the sea was shrinking, and that would make it easy for animal life to transfer the deadly pathogens to the mainland.
Or make it easier for the terrorist bad guys to get their hands on it.
I think this is a bad thing all around.
Re: WMD Facility on island (Score:2, Funny)
> I recall watching a documentary on a Soviet-era facility dedicated to researching and developing bioweapons. As of the late '90s, there were massive stores of anthrax and smallpox buried there, and some of it was leaking.
WMD on island
Re: WMD Facility on island (Score:2)
OTOH, for live ex-bioweapon stuff, Africa is far more accessible.
Re: WMD Facility on island (Score:1)
Pardon me? (Score:5, Insightful)
Errr, not to nitpick but the Soviet governments that were responsible for the disastrous irrigation projects in Central Asia were led by Nikita Khrushchev and Leonid Brezhnev. The current Bush administration had very little to do with it.
Re:Pardon me? (Score:5, Funny)
Since we are hearing about this story, it is obviously G.W. Bush's fault.
Re:Pardon me? (Score:1)
Either way, I bet there is a good laugh in the parent post whichever side of the political spectrum you are on.
Basically saying the previous president was a whore in nearly every sense of the word and the current is far less scandaless. Or the media made too big of an issue out of the failings of the past president and does not look deep enough for the current president.
Re:Pardon me? (Score:2)
However, a combination of Soviet irrigation and the regional and worldwide state of environment and resource use policies is likely the cuprit.
Re:Pardon me? (Score:2)
Re:Pardon me? (Score:2)
No, it's not hard, but it's not something I can say with certainty. Maybe I'm nuts, but I don't like to make absolute statements like the one you reccomend- there is a chance, however small (or not-small, I can't say, I've no clue)- that Bush had something to do with the Aral Sea disappearing.
It's a simple matter of probability. As a scientist, I don't make silly absolute statements that I can't back.
Re:Pardon me? (Score:5, Insightful)
Re:Pardon me? (Score:2, Informative)
Video Documentary (Score:1)
To the editors: the link to the BBC site links relative to slashdot. Add http:// before the link!
Huh? Blame the Bush administration? (Score:4, Insightful)
"Leaky Irrigation" In A Watershed? (Score:1)
Re:"Leaky Irrigation" In A Watershed? (Score:1)
Re:"Leaky Irrigation" In A Watershed? (Score:2)
Re:"Leaky Irrigation" In A Watershed? (Score:1)
Re:"Leaky Irrigation" In A Watershed? (Score:3, Insightful)
It's basically a matter of spreading water over a larger surface area.
eg. Leave a cup of water out, and pour another cup of water on a large baking sheet. Water on the baking sheet is exposed to more air and thus will evaporate faster.
Here are some resources that you should find interesting: (remove the space that
Ground Water Budgets
http://water.usgs.gov/pubs/circ/circ1186 / html/gw_d ev.html
50% of Maine rainfall evaporates
http://wa.water.usgs.gov/news/news.wri r01-4110.htm
Re:"Leaky Irrigation" In A Watershed? (Score:2)
Well how 'bout you make it a link for us instead, so the space that slashdot adds is no longer relevant?
Re:"Leaky Irrigation" In A Watershed? (Score:2, Informative)
It probably depends a lot on the air currents and geography of the region. But it's very surprising how much water can be moved through the air.
Irrigation can also move water from one watershed to another (it does not respect watershed boundaries like rivers tend to).
For a really interesting techn
Re:"Leaky Irrigation" In A Watershed? (Score:4, Informative)
In case you haven't, it's a small stream in a salt-flat. Irrigation projects siphon all of the water out.
The Soviets built massive irrigation projects that drew off of the Volga and other rivers. They were and probaly continue to grow everything from rice to cotton on land that was once parched steppe.
What ends up happening is that since you are spreading billions of cubic feet of water across hundreds or thousands of square miles, the water is used, evaporated (probaly about 75%) or added to the watertable.
Large-scale irrigation causes all sorts of problems. There has been reasearch that hypothised that the added moisture in western states increases the number of thunderstorms and forest fires in the Sierras and Rockies.
Re:"Leaky Irrigation" In A Watershed? (Score:3)
Ummmmmm.... aren't you being a little 'generous' there with your euphemisms? You know, calling the Hoover Dam an "irrigation project"?
Yes, large-scale irrigation DOES have effects on the surrounding environment. Building a gigantic fucking wall across a river bed does too.
If you wanted to give an example of out-of-control irr
Re:"Leaky Irrigation" In A Watershed? (Score:2)
Re:"Leaky Irrigation" In A Watershed? (Score:2)
Right, but the original parent's post implied that, at the mouth of the river, what was previously a huge flowing river has been turned into a small stream because lots of irresponsible irrigation projects are sucking the water away.
My point is: the river is hugely diminished because they built the Ho
Re: "Leaky Irrigation" In A Watershed? (Score:5, Informative)
> Is the irrigation surrounding the rivers taking the water out of the sea's watershed? Seems unlikely. The water would just eventually run back into the river and the sea.
No, much irrigation water is lost to evaporation or to incorporation into the crops.
Remember that crops, like most other life-forms, are mostly water. So for those little seeds turn into railcar-loads of consumables, all that water has to come from somewhere. Irrigation converts flowing water into money.
Also, some kinds of irrigation are extremely wasteful in terms of evaporation. Next time you drive through Texas under a blazing sun and see all those endless acres of rice shoots submerged under 6" of water, ask yourself what the evaporation rate must be. The lakes behind big dams also greatly increase the evaporation rate in a drainage system.
And though what goes up eventually comes down, it might come down half a continent away.
> I mean, how is water leaking from a poorly-built irrigation system different from the rain that falls right next to it and feeds the rivers and the sea to begin with?
In general terms, it is distributed differently, which means it can behave differently w.r.t. evaporation etc.
To make up an illustrative example, suppose you water your lawn to a total of 10" over 10 months, just a little bit every night. Not much runs off, right? But if you get a 10" rain over a couple of days it stacks up faster than it can be absorbed or evaporate, so most of it runs downhill into streams that feed the sea.
Surely that's not precisely what's happening in Central Asia, but it should call attention to the fact that the way water is distributed in space and time can have a big effect on where it ends up.
It is really a lake (Score:1, Interesting)
It's a sea because it is salty (Score:3, Informative)
huh? It is a sea, primarily because it is salty.
The vast majority of what is called lakes do connect to the ocean: from Lake Superior to Lake Placid.
See dictionary.com concerning sea " A relatively large body of salt water completely or partially enclosed by land." This applies to the Caspian Sea as well. Lake Su
Re:It's a sea because it is salty (Score:2)
Description: This series of MODIS images shows the dwindling Aral Sea. Once one of the worlda(TM)s largest freshwater lakes, the Aral Sea has decreased by as much as 60% over the past few decades due to diversion of the water to grow cotton and rice. These diversion have dropped the lake levels, increased salinity, and nearly decimated the fishing industry. The previous extent of the lake is clearly visible as a whitish perimeter in these image from Ap
I think NASA goofed (Score:2)
"aral sea" saltwater.
You will see many references to it being a saltwater sea, including Encyclopedia Brittanica, The Aral Sea Homepage [8m.com], and a wide variety of geographical and educational pages.
Re:I think NASA goofed (Score:2, Interesting)
Re:It's a sea because it is salty (Score:2, Informative)
Err, the Caspian Sea is (or is not) a lake just as much as the Great Salt Lake in Utah or the Salton Sea in California are (or are not) lakes. I think most geologists would classify any body of water that is not an arm of the ocean as a lake. So, the Caspian Sea is, IMHO, both a sea and a lake. I wouldn't consider the terms mutually exclusive.
Also, when you say "largest", you must specify the quantity you are measuring. Are you measuring surface area or volume? For freshwater lakes, Lake Baikal in Ru
Re:It's a sea because it is salty (Score:1, Informative)
"Geography. On the one hand, like most lakes, the Caspian Sea is fed by rivers and is not connected directly to the open sea. Apart from the rivers, it Is completely surrounded by land. It is below sea level.
On the other hand, unlike most lakes, the Caspian Sea is bordered by several states.(21) It is the largest inland body of water in the world,(22) comparable in size, depth and salinity (23) to many semi-enclosed marine seas.(24) Rivers feed t
This is news? (Score:4, Informative)
Re:This is news? (Score:2)
--ken
Irrigation Kills Lakes (Score:1, Interesting)
Life's tough. Without the death of Lake Tulare, California would produce far less crops to feed the world. Without the Three Gorges Dam, China would have to build lots of fossil fuel or nuke plants.
It's always bad when we lose a valuable and unique ecosystem like the Aral Sea, but sometimes we humans must make tradeoffs. I have no clue whether the death of the Aral is an appropriate one, but I think
Irrigation Creates Lakes (Score:2)
Use better irrigation (Score:5, Informative)
How did they make the desert bloom? [mfa.gov.il]
The most important innovation in coping with scarce water supplies has been drip irrigation [cropinfo.net]. This method of irrigation applies water and nutrients directly to the root of the plant at a controlled rate. See the drip irrigation pipelines [mfa.gov.il]. With traditional irrigation, most of the water evaporates from the ditch and is wasted. Drip irrigation uses less water, works with saline water, requires less fertilizer, and produces more crops.
It was invented in 1965 and has been used all over the world. If those former Soviet republics aren't using it, I suspect the reason is that they don't think they can afford to pay for the equipment. I would say that perhaps they can't afford not to pay for it.
Salinization (Score:1)
However, regardless of how good the irrigation methods, it was my understanding that all irrigation eventually desroys the soil through salinization. "Better" irrigation methods merely reducing either or both the rate at which salinization occurs and the rate at which water is wasted through evaporation.
How efficient is hydroponics in contrast?
Re:Valuable ecosystem (Score:2, Interesting)
Irrigation threatening US water supply (Score:5, Interesting)
Re:Irrigation threatening US water supply (Score:4, Interesting)
Water, water everywhere and not a drop to drink...
That's a Small Impact . . . (Score:3, Interesting)
...compared to the 1000 miles of streams that have been buried in West Virginia. [ohvec.org] Not to mention the 15%-25% of southern West Virginia's mountains that have been leveled [ems.org] causing the loss of 300,000 acres of highly productive hardwood forests.
All so you can have electricity for 3 cents per kilowatt-hour.
Re:That's a Small Impact . . . (Score:3, Interesting)
Re:That's a Small Impact . . . (Score:1)
I never said we should eliminate coal mining. The mountaintop removal/valley fill method is ABSOLUTELY UNACCEPTABLE, though. If you think we should do better than what we're doing now, then we're in agreement. We can do MUCH better than this. This method of mining doesn't reduce the COST of coal. It just reduces the PRICE of coal. The cost isn't represented in the price because the out-of-state coal corporations lik
Re:That's a Small Impact . . . (Score:2)
You're missing an incredibly important point, though. This is not a valid economic activity. This type of mining is illegal under both the Clean Water Act and the Surface Mining Control and Reclamation Act. It's only allowed to continue because the industry has rooted the state and federal government agencies that regulate mining. This is going on over the expressed objection of the people of West Virginia and the United States all because a few powerful, well-connected industries have 0wnz0r3d the WVDEP an
Re:That's a Small Impact . . . (Score:2)
Re:That's a Small Impact . . . (Score:2)
Well, I apologize if I overreacted or misinterpreted your comments. This is a touchy subject for me and I felt you were minimizing it (while you apparently felt I was minimizing the Aral Sea issue.)
I'm still not sure about you since you've adopted the mining industry's obscuring euphemism of "mountaintop mining" instead of the original terms of mountaintop removal mining or mountaintop removal/valley fill mining. You also used a Bushism, "...look for the log in my own eye before pointing out the speck in so
Re:That's a Small Impact . . . (Score:2)
Don't know if you're still reading or not, but here's an article [wvgazette.com] from today's paper...
'We're enemies now'
Mine runoff has Boone countians opposing Big Coal
By Tara Tuckwiller
STAFF WRITER
SYLVESTER -- Last week, Jimmy Dickens worried more than usual about the water his 4-year-old daughter bathes in, brushes her teeth with and drinks.
Independence Coal Co., a Massey Energy Co. subsidiary, had leaked 250,000 gallons of heavy metal-contaminated "blackwater" into a nearby stream, and then didn't tell anybody.
Logic says (Score:5, Interesting)
We're going to divert rivers. We're going to alter the natural habitats of pretty much all life on the planet. Animal species will go extinct (unless we take the time to specifically preserve each and every one). We're going to change the mixture of gases in the air...
At some point, everyone is going to have to come to grips with this. The Earth can't support this many people and still exist in it's "Natural" state. The hard part is not screwing it totally up and ending up with a toxic environment.
Eventually, the land's all going to be either populated area (city / suburb), agricultural, or a managed wildlife "park".
Re:Logic says (Score:2)
I don't. Ever read Rainbow Six? If not, you should. The main story is about a group of really clever scientists who get fed up with with humanity's irresponsibility and decide to kill 99.999+% of the population via a smart bug (modified Ebola virus mixed w/ cancer genes for robustness).
There are people who are smart enough to create such a thing, there are people who hate the idea of overpopulation that they would happily kill off the masses, and all that w
Re:Logic says (Score:2)
Re:Logic says (Score:2)
And that would only be 10% of our current population.
And we're not overpopulated.
For the die-offs needed to reduce the world population by a significant percentage, we'd need either nuclear holocaust, or plague. Plague being more effi
Re:Logic says (Score:2)
I wasn't (half-heartedly) referring to any mamby pansy little kill off a few 10's million war. I was referring to total, all-out, break out the all the weapons, no rules, war. Let's not play games here. I'm
Re:Logic says (Score:2)
Personally, I like the idea of everyone having ample land for themselves and family, enough food of any kind to go around, safety, no pollution, no animal species being endangered, etc.
This world *is* possible, but not with even 6 billion, much less 10, 20 or 100 billion.
But sure, if you economize everything, and pack people into sardine can apartments, feed them only the nutritional minimum to get by, take away property, piss on the enviro
Re:Logic says (Score:2)
In all honesty, even if nuclear weapons were used in another war, sure the casulties would be as high as WWII (possibly higher), but I think you would still see a major portion of the population survive...even have people move back into the areas where the bombs were det
Re:Logic says (Score:1)
Re:Logic says (Score:2)
You know, it's one thing to do it right. It's another to really, really fsck something up. Hopefully, they've recognized that there is a problem and will fix it. It won't make up for the damage already done; but, it'll help. Only time will tell.
Re:Logic says (Score:2)
there are often ways to do it better, perhaps lower the impact. There will still; however, be an im
You think war for oil is bad? (Score:5, Interesting)
Wait until there are wars for water.
People can live without oil. They may not want to (what would happen to the US without oil?), but they can. Water, however, is a different story.
I've seen an incredible number of stories about water, water shortages, fights over water rights and irrigation, and such in the past year. As the population of the Earth continues to rise, so does the demand for water. Many of the water supplies currently being used are already being used faster than they can replenish - and they're only going to get more use.
Eventually areas are going to start having serious water shortages.
The most wasteful country in the world in terms of water? No suprise, the US. The combination of all the endless golf courses, which is the #1 use of water in the US IIRC, and all those suburban laws, especially in areas they're not supposed to be growing such as the Southwest, and incredible amounts of water are being taken from rivers and aquifers for pretty silly purposes.
I wonder how long until serious money starts being spent on how to make cost efficient desalinization of ocean water, and better pumping to get the water from coasts to inland. Because there aren't going to be enough sources elsewhere to supply all the water needs at the rate things are going.
So much water on the planet, and still there seems to not be enough...
Re:You think war for oil is bad? (Score:3, Interesting)
No, desalinzation (at least not in the conventional sense), is not one of them.
New soil polymer technologies are coming along that will drastically reduce the amount of water needed for plants---Imagine a lawn that you only have to water every 3 weeks, even in the southwest.
Other composite materials actually alter the thermal properities of the soil, increase the rate of air->soil water transfer. Imagine this->Digging resevoirs, filli
Re:You think war for oil is bad? (Score:2)
I doubt that golf courses are the number one hit. We are still heavy into agriculture and therefor irragation would be number 1. Out here in colorado, agriculture accounts for ~80 % of the water use. In very wasteful states (CA and Tx being some of the worse abusers going), you will see rice farms useing aquafer water for irragation. Back east, the farmers are starting to get into irragation to guarentee good crop
oh well.. (Score:2)
For statistical geeks (Score:4, Informative)
Not only has it lost half its surface area since 1985, it seems to have lost two thirds since 1960. outlines [dfd.dlr.de] are interesting. I wonder what it's like on that island that's almost a peninsula.
And while this has little to do with global warming, it's a prescient example of significant human-caused environmental change.
Re:For statistical geeks (Score:2, Informative)
Since, hydrologically, Lake Michigan and Lake Huron are the same lake with two lobes, the top three are technically the Caspian Sea, Lake Huron-Michigan, and Lake Superior, with Lake Victoria at 4th, and the old Aral Sea at fifth.
If we instead use the scentifically inaccurate but traditional division of the Huron-Michigan into two bodies, then the order is the Caspian Sea, Lake Superior, Lake Victoria, the (old) Aral Sea at fourth, then Huron and Michigan as fifth and sixth, respectively.
Re:For statistical geeks (Score:2, Interesting)
I am pretty sure that I've read that Lake Baikal is the largest by volume, which is arguably a more accurate way to measure the size of a body of water. It contains almost 25% of the world's fresh water.
Trivia: what is the claim to fame of Ryan Island? It's the largest island in the largest lake (Siskiwit) on the largest island (Isle Royale) in the largest lake (Superior) in the world. (Assuming you go by surface area and count only freshwater lakes, I guess.)
aral sea - related reading (Score:1)
Sigh, absolutely noting to do with the US. (Score:1)
ah, an expert on junk science (Score:2)
Not surprising, most of us don't consider Rush Limbaugh and Monsanto and White House spokesdroids as "Men of Science".
Re:Sigh, absolutely noting to do with the US. (Score:2)
The reason Bush was mentioned is because the current US government wants to put all a
Re:Sigh, absolutely noting to do with the US. (Score:2)
Who's blaming Bush??? (Score:1, Informative)
The Aral Sea's disappearance serves as warning to how much damage poor farming techniques and industry can do to the environment. As previous posts have stated, water resource
Irony not hypocrisy (Score:3, Informative)
Re:Ownership?? (Score:1)
Re:Ownership?? (Score:1)
Re:WHOA!!!! check out the NASA link (Score:1)
On-Topic Portion: This is a good justification for the space agencies' continued investigation into environmental problems on earth.