America Is Using Up Its Groundwater Like There’s No Tomorrow

pips@lemmy.film to News@lemmy.world – 396 points –
America Is Using Up Its Groundwater Like There’s No Tomorrow
nytimes.com
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Fun fact: there will be no tomorrow when the water runs dry

You have thousands of kilometres of coast; if you don't dessalinate it's because you don't want to.

America does desalinate in it's coastal regions. Increasing desalination is prohibitively expensive. Shipping water inland is preposterously expensive. Even if you spend the money, scaling up takes years or even decades.

There are reasons America, like nearly all other nations, gets a relatively small amount of it's fresh water from desalination.

[...] Increasing desalination is prohibitively expensive. Shipping water inland is preposterously expensive. Even if you spend the money, scaling up takes years or even decades.

Just like oil and natural gas?

There are reasons America, like nearly all other nations, gets a relatively small amount of it's fresh water from desalination.

The way desertification is advancing in California (there must be other places facing the same problem) there will be a tipping point where mass scale desalination will be implemented.

Orrr... a tipping point where the human population becomes wholly unsustainable and starts to tear itself apart in "The Water Wars", as they'll be called.

America actually does do desalination in several locations along the California coast and is expanding.

Like everything in life, it's not that simple.

One thing that is simple, however, is googling the answer to this question before making an uninformed response.

There is a limit for how much water consumption can be reduced, how much water can be reused and how much preserved untouched.

It is actually a subject I actually find interesting. All the criticism put towards the technology could be as easily applied to the internal combustion engine: its inefficient, produces larges amounts of residues and is expensive to run.

There are several large scale operations already in place (Israel sources its water from the sea, as well as several other nations where drinking water is scarce) and even hotels use it to source water for swimming pools.

There is, of course, the problem of distribution but we've already invented pipelines, haven't we? And a water pipeline bursting could cause floods but no great concern lasting environmental damage, unlike oil or liquified natural gas.

so you agree with me? it's not simple. it's not just because "you don't want to". desalinization is extremely technically challenging.

All the criticism put towards the technology could be as easily applied to the internal combustion engine: its inefficient, produces larges amounts of residues and is expensive to run.

This was an attempt at being sarcastic.

If we're running a technology by all means obsolete (internal combustion engine) and do it overlooking its drawbacks running current technology for dessalination can very well follow the same reasoning.

I read a good deal of criticism towards dessalination regarding the disposal of the brine. That is a fair point but those brines could very well be reprocessed for minerals harvesting including lithium, which has great demand. Even by just harvesting the salt, we'd be getting an important resource.

There is, of course, the problem of distribution but we've already invented pipelines, haven't we?

This is true and we already do it. Fresh water is distributed over huge distances using high pressure and volume. The infrastructure already exists.

And a water pipeline bursting could cause floods but no great concern lasting environmental damage, unlike oil or liquified natural gas.

I've lived where this happened once and it was not pretty. A low point of high density residencial area got flooded. Water reached somewhere around 80cm high. Damage to cars and ground stories, water distribution interrupted for 3 days. But no lasting damage.

And what do we do with all the salt?

I'm going to be dense as I have no knowledge in this area, but can you just put it back in the ocean? I assume with sea levels rising the ocean is getting less salty so it wouldn't be harmful as long as we spread it out/did it slowly?

Yes, but how it's done is hard and expensive. If you just pump it into one spot you kill everything around with high salt concentrations. You can pump it far out to sea and disperse it over a large area, but that requires pipes going out to sea. The pipes would probably be made of metal, which salt water and metal don't mix well, not to mention the brine in the pipe. You also need pumping stations along the pipe because it can't perpetually slope down, and if it goes below sea level it needs to be pumped out.

Basically, it's complicated and expensive and not as easy as just dumping it into the ocean.

Reprocess it for minerals harvesting, like lithium, or just evaporate it and keep the salt, which by itself is a resource for chemical industry.

If it were that easy then it wouldn't be an issue.

I made that same observation some time back and the answer I got was: money.

Why spend the money to develop a technology to harvest a mineral from the sea with probably minimal to no impact to the environment when you can simply use already existing tech and just open a hole in the ground?

Desalination produces a massive pull on using more fossil fuels. It’s an emergency procedure. Not an end goal. Read a book.

Well, put me in a red dress and pony tails and call me Shirley..

Haven't we discovered other ways to harvest energy besides fossil fuels? Perhaps wind a solar might be an answer to that problem?

My own country is in the process of converting a former refinery into a green hydrogen plant and part of the conversion goes into installing a few gigawatts of power in solar and wind.

Couldn't this same solution be used for desalination?

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Wait till you learn about the water cycle.

It takes hundreds of years for groundwater to replenish. We are experiencing problems right now.

Sure, I never said anything about that, only commenting against the hyperbole that there will be “no tomorrow” when places run out.

There will still be tomorrows, people will just move elsewhere like they’ve done for thousands of years.

Problem is, there will be less and less elsewheres where people can still live within a hundred years or so.

Yes, I commented on that. They will go elsewhere, and they will have tomorrow. It’s weird y’all are downvoting this like it’s personal to you.

Thousands of years ago didn’t have desalination nor electricity.. there’s a reason why they moved to fresh water inland.and before you jump there: desalination requires a fuck load of electricity that impacts with other issues.

Read a book.

What does this have to do with tomorrow stopping permanently because places lose ground water, though?

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...says the guy who clearly doesn't understand the geologic water cycle.

Sir?

I see you posting and I’m still waiting for your proof or reasoning behind thinking there will be no tomorrow when some places lose ground water.

You guys are all smug af with your downvotes, but got absolutely nothing for facts beyond your provocative hyperbole.

Keep in mind I never said losing ground water wouldn’t suck and/or be catastrophic, only looking for some proof it will be “the end of tomorrow” as the upvoted dude with his provocative words stated so definitively.

I keep getting told to read a book or that I know nothing of history or geology, yet all of human history proves me fucking right so far, so I’ma need literally any scrap of evidence from fucking anyone who has something better than a shitty opinion alongside some clicks of a down arrow.

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Tbf there very well could be no tomorrow

With climate change and large corporations like Nestlé sucking up all the water it can this will only get worse.

By the way large corporations and large agriculture farms are to blame for the most waste of water.

Also the amount of money spent on watering lawns and golf fucking courses are huge factors in this.

We need to put end to Nestlé and fuck lawns.

In general: bad.

But the lion's share of that groundwater is going to agriculture, and much of it specifically to animal feed, so unlike with carbon emissions, this feels like the sort of environmental disaster that market forces are at least going to be somewhat responsive to; less groundwater -> spike in alfalfa prices -> spike in beef prices -> people eat less beef -> people use less groundwater.

Nah, the beef lobbies will just have the government increase subsidies. Obviously corporate profits are more important than the future of the human race.

Yeah but how long does that take, compared to how long the environmental destruction takes?

It sounds from the article like the environmental destruction has been going on for decades and that it's already affecting crop output in some places.

DUSTBOWL II: Electric Boogaloo

California has areas that have sunk 8+ feet. This is because agriculture dug down past the first water table into the second to feed rich, water-hungry crops like almond trees.

It's been worrisome for a long time, but bug ag had the ear of the feds so did what it wanted.

I thought that groundwater used in beef production exists in the water cycle and actuslly replenishes. Did I fall for a talking point?

That water would logically enter the typical water cycle, but ground water itself can take a long time to replenish. It seems to depend on the particular source, but in many cases it is functionally non renewable.

Once pumped out, it will evaporate, rain down, and eventually make its way in to the oceans, I assume. Desalination seems like it will eventually be the solution, but it's a long way off.

the west coast is especially fucked.

there was never enough ground water and there never will be.

Central planes as well, there is an enormous amount of crop land that will no longer support farming.

It's not like it's getting zero rainfall, it's just not getting enough to support its current levels of crop output; they were growing cereal crops in the Great Plains long before we figured out industrial-scale groundwater irrigation.

Idk fam there were some huge rivers in California not that long ago. Arizona and Nevada are much more iffy.

rivers != ground water

the water table dispute has been going on since the early 1800s.

I'm grateful you folks are doing something to combat the rising water levels.

^(/s just in case)^

Lol, it's nice to see nothing has changed in 20 years. Good job conservatives.

I mean, the Democrats haven't done fuck all better either. California and other blue states haven't done much better. We just love growing water hungry crops on deserts. It's insane.

I didn't say Republicans, I said conservatives. That includes a majority of the Democratic party.

I swear it isn't possible to roll my eyes hard enough when people call Democrats communists... It's like ok I get that you don't even know what a communist is and you're just parroting a propagandist, but most Democrats aren't even socialist they're mostly center-right conservatives...

Ok idea: any town that is willing to give up land for solar power can earmark 90% of the power from it to run pumps and desalination to get them water.

And for the other 90% of the country not within 100 miles of a coast?

Maybe there will be a nice sale on "Population: 0" signs to plant at the town borders.

Can someone ELI5 where the water actually goes when it's used? It evaporates and goes somewhere else, right? So the drier one place gets, the more wet a different place needs to get because the earth is a closed system.

So where does water from the US go when it's used and/or evaporated?

Ground water is largely used to water crops. As an example, massive amounts of food is grown in California using California ground water. That food (containing said water) is then shipped all over the country and to other nations. It's exported in the form of produce.

Groundwater is water that has collected at some point. Lake, aquifer, whatever. Over X many years rain has pooled in this spot.

If there is X amount of rain coming in each year and you use less than that, by sending it on down the river/whatever no worries. (as long as you're not dumping things in the river that are gonna suck for people downriver.

If you use more than that, well there's going to be less water in the groundwater next year. Also the people downriver probably don't get as much water, so they're groundwater will also probably be lessened if they don't cut back.

Groundwater tends to be millions upon millions of gallons. It takes a while to use up, especially since it's being replenished occasionally.

But if you're using more than is coming in it doesn't matter that it will "eventually" come back around. At some point there's going to be a dry spot in the loop where previously there's been a water deposit.