Guest Post by Willis Eschenbach
My friend Matt was kind enough to forward me some links to a new scheme for sequestering carbon in the areas of the ocean that have very little chlorophyll, which means areas with little of the oceanic green plant life called “phytoplankton”. Phytoplankton are the tiny chlorophyll-producing plants that are the foundation of all sea life—everything that lives in the open ocean either eats phytoplankton, or eats something that eats phytoplankton, or eats something that eats something that eats phytoplankton, ad infinitum. Without phytoplankton, the ocean is clear blue and lacks life.
The scheme involves the work that a company called MyOcean Resources is doing to solve what they call the “Global Warming and Ocean Acidification problems” in one go. They plan on building something called “ECOPIA”, which stands for “Earth Climate Optimisation Productivity Island Array”. ECOPIA is supposed to increase oceanic carbon sequestration. Information about ECOPIA is available as a PDF from the link above.
(A short digression. These acronyms like “ECOPIA” make me laugh. I’ve worked a few times as a consultant to the US Government. When you write a government report, they want a glossary of the acronyms at the end. So I invented an acronym, “SPREVELUA”, and put it into my glossary, claiming it meant the “Society for the PREservation of VEry Long Useless Acronyms” … of course, none of the bureaucrats who read my report ever noticed. But as I said, I digress, let’s set sail again on the marvelous ocean …)
Matt sent the information to me because he knows I’m a data guy, as well as an erstwhile commercial fisherman and bluewater sailor. I’ve sailed across some of the very areas of low chlorophyll that their scheme covers. So I set out to see if I could replicate their finding that the low-chlorophyll areas of the ocean are expanding.
The information he sent me included two studies which were most interesting, here and here. Both studies claimed that the areas of the low-chlorophyll parts of the ocean are getting bigger. So I decided to see if I could replicate their findings. I used a different dataset, the AQUA satellite chlorophyll dataset available here, because it is the longest one available. Here are the average chlorophyll levels from the first of the two studies, for the period 1998 – 2013.
And here are my results, for 2002 to 2021:
I’ve used a log scale, as did the paper above, to encompass the range of the data. As you can see, I get results that are virtually identical to the results from their study, despite the different time periods and data sources. So that finding is totally replicated. The area-weighted average chlorophyll level globally is 0.38 mg/liter.
However, I was totally unable to replicate their results regarding their claim that the least productive areas are expanding. Here are my results showing the decadal trends in the chlorophyll level.
There are several things of note here.
• Some areas are indeed losing chlorophyll, and some are gaining. However, they are only loosely related to the areas of least productivity shown above, particularly in the southern hemisphere.
• Overall the oceanic chlorophyll is increasing, not decreasing. The global average increase is about 0.012 mg/liter per decade.
• The trends are generally small compared to the average chlorophyll level of .38 mg/liter.
• The biggest gains are in the extratropics, particularly the sub-polar regions, and the tropics on average is basically neutral.
Having replicated one but not the other of those claims, I took a look at the ECOPIA concept. Their plan is to sequester 9 gigatonnes of carbon per year. Their claim is that a glass lens 1m in diameter plus a few hundred meters of fiber optic cable will sequester 50 kg of carbon per year. And they airily say they just need to “scale up building of structures”. Yeah, like that’s so easy to do. Here’s their graphic of the lens plus the fiber optic cable.
Their plan is to pipe light down deep into the ocean, to increase phytoplankton growth. Let me note that if light was all that was needed to increase phytoplankton growth, we’d find phytoplankton at the surface … but we don’t, because the necessary nutrients (mostly iron) aren’t available. Their claim is that the lower end of the assembly will be down below the “thermocline”, which is the dividing line between the wind and wave mixed surface waters and the next deeper layer. They say there are nutrients aplenty in that deeper water.
As an aside, it’s far from clear that hanging something like this down below the thermocline will work. The problem is that the currents in the mixed layer are often going in a different direction from the currents below the thermocline … and when that happens, the fan arrays will be dragged in a different direction, and may well get pulled at an angle to the point where they are no longer below the thermocline …
In addition, it’s also much colder down below the thermocline, so it’s not clear where these cold-adapted phytoplankton will come from, since none live there naturally
However, I find no indication anywhere that they have actually tried this concept to see if it works … which is curious, because it could be “proof-of-concept” tested for a few ten-thousands of dollars or so. Makes a man wonder.
In any case, assuming that 50 kg/year of carbon sequestered per assembly is the case (they don’t present any actual experimental figures), this oh-so-simple “scaling up” to sequester 9 gigatonnes of carbon would require the manufacturing of no less than 180 billion 1-meter glass lens plus fiber optic cable assemblies.
(By comparison, about 90 million cars and 135 million toasters roll off the assembly line each year. So if we could build these lens/fiber assemblies at the rate of say 500 million per year, it would only take 360 years for the buildout … but I digress.)
Then they say these assemblies will be enclosed by “Ring Donut shaped artificial islands with a diameter of 50KM with an internal moon pool of 46KM diameter” … here’s their graphic of the concept.
I have no idea how to even build such an object in a manner that would withstand a serious storm. Per their description, the surface of the artificial island will be 2 km wide and 160 km long (1.25 by 100 miles), and will be made of … well, further deponent sayeth not. What could it possibly be made of? How will it be made strong enough to withstand flexing from the occasional huge ocean waves?
To give an idea of the size, the top surface area of each artificial island will be about 300 million square meters. The top surface area of the world’s largest container ship is 24,000 square meters, so it would take 12,500 of the world’s biggest ships to cover the area needed.
And assuming the glass lenses are each floating independently, what will keep them from bashing each other to death in the first storm?
Then they claim that these artificial floating islands will be kept from drifting until they crash into the shore somewhere by “magnetohydrodynamics or vertical wings” … seriously? The forces on these structures will be immense. Handwaving about MHD and wings won’t cut it.
And where and how will they construct even one of these gigantosaurs? It’s 50 km (30 miles) across … seems like the only way would be to build it in 12,500 giant ship-sized sections, each weighing a couple hundred thousand tonnes, tow the sections thousands of miles out to sea, and bolt them together … nothing like that has ever been tried, and for very good reason. Tshe towing of just one of these sections will require a small fleet of tugs … and the thought of bolting two 200,000 tonne structures together in mid-ocean while each one is independently bouncing up and down in the waves makes my blood run cold.
I’m getting the sense that some of these folks have never been through a severe storm at sea … not something for the faint of heart.
Next, we have the price. They claim that it can be done for a mere $10 trillion dollars. To start with, they are looking to raise $20 million dollars for the initial funding …
Now, folks generally don’t realize how big a trillion dollars is. So let’s assume that they somehow get their funding so fired up that they are bringing in $20 megabucks each and every day of the year … at that furious rate, how long will it take to raise the $10 trillion dollars?
…
The answer is, if they are bringing in $20 million dollars per day, it will take them 1,369 years to raise the full $10 trillion.
…
And even those numbers seem wildly optimistic. They plan to build one hundred of these floating ring-shaped islands, each the equivalent of 12,500 gigantic container ships. These giant ships cost on the order of $200 million each … and the islands will have to be much stronger to take the strains. So the one hundred floating islands will cost on the order of $250 trillion … and even in the unlikely event that they could somehow be built for a tenth of that, it’s still $25 trillion for a hundred of them, which is more than double their estimate for the whole project.
Finally, as a long-time fisherman and seaman, here is what I can guarantee will be the largest problem with this scheme, a problem which they don’t even mention …
Fouling.
Ship’s bottoms are painted with toxic anti-fouling paint to keep all kinds of small marine creatures from taking up residence on the underwater surface—barnacles, limpets, mussels, copepods, and a host of different kinds of zooplankton (tiny animals) and phytoplankton (tiny plants) all love to colonize anything underwater. Some kinds of antifouling paints have had to be made illegal because when there were a number of boats in an area, they were poisoning entire bays and harbors … doesn’t bode well for the ECOPIA idea of increasing sea life …
These underwater surfaces will be heaven for phytoplankton in particular because phytoplankton are plants, and like all plants they need light. The phytoplankton will immediately take up residence on each of the fiber optic strands. And these few phytoplankton will choke off all of the light for the surrounding area that the ECOPIA people are depending on to create the midwater conditions for big plankton blooms … no bueno.
Humans have spent centuries trying to prevent fouling on the undersides of ships, with only limited success. Even the best of antifouling paints needs renewing every few years, and not one of the various kinds of antifouling paints is transparent, as would be required for this application.
And even if some magical transparent antifouling is invented, it’s a near certainty that they’ll still need to reapply it to the 180 billion units say once every three years (although likely much more frequently) … which means you’d need to take a boat up to ten miles out into the “moon pool”, haul out, clean off the fouling, prep the surface, and repaint no less than 164 million of these lens/fiber optic assemblies every day, 24/7/365, forever.
Riiight … so setting the practical impossibility of that aside, let’s assume that including labor and materials and transportation of the same to midocean, it would cost maybe $250 to renew the antifouling for a lens/fiber-optic assembly. It probably would be much more, getting a fender on your car fixed costs more than that, but let’s be wildly optimistic.
That would be a cost of $15 trillion per year … and they claim the whole project will only cost $10 trillion …
Math. Don’t leave home without it.
And moving on, last year we had a drought here in California, and everyone was raving about how it was the result of evil human-caused global warming. But this year, here on our lovely California hillside with a tiny bit of the ocean visible in the distance, we’ve already gotten more rain than we got all of last year (rainfall year, Oct. 1 to Sept. 30). And it’s funny … but nobody is ascribing that most excellent news to global warming.
Go figure. It’s almost like they are rooting for disaster so they can blame it on people … what a bizarre anti-human religion climate alarmism has become.
My very best wishes to all, inlaws, outlaws, climate alarmists and sane people alike, and my thanks to Matt for sending me this interesting koan,
w.
PS: If the inventors of this scheme wish to comment, they are more than welcome to explain and defend their ideas, and to point out any mistakes I may have made.
MY USUAL: I can defend my words. I cannot defend your interpretation of my words. So to avoid misunderstandings, when you comment please quote the exact words you are discussing.
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Acronyms are a curse in all fields.
In my old field, I built a sheet with all the acronyms we used. We tended to 3 letter acronyms. So of course, I called my list the “TLA List”.
People would ask what TLA meant.
I replied that it was “three letter acronym”.
Everyone asking would become exasperated, and say ” I KNOW that. But what does it mean?”
Kinda like “what is the number of 911?!” by a famous American philosopher.
A four letter acronym (FLA) is a TLA and so it goes on. HAGD. 🙂
Then too there is this:
UNA = use no acronyms
I get to be the Ackshully guy!
A four letter TLA is an ETLA, Extended Three Letter Acronym.
i joke you not I got a book in throwout at an opshop(guess why) its huge heavy and some 300+ pages just under A4 size
and its FULL of acronyms for govt and global departments
one day it will be fuel for my fire
Then too there is this:
UNA = use no acronyms
They could develop a BOA (Book Of Acronyms), but that would squeeze the meaning out of all technical communications.
see my post above:it exists
UPROWAURN*
*You people are obsessed with acronyms. You are nuts.
Of course, the word acronym is derived from the Greek akro, meaning top or extreme, and nomen, meaning name. Back in the day, NASA had a book of acronyms. Included in it was: ACRONYM – A Coded Rendition Of a Name Yielding Meaning.
Willis: I got a chuckle out of your acronym “SPREVELUA”. I submit for your edification the following acronym for the enforcement of climate claims… FERN – Federal Enforcement of Ridiculous Nonsense… Feel free to use any time
Biologically Appropriate Real Foods.
I see that they are a team of 2 and their purpose is to TRY to solve SOME of the pressing challenges etc.
I suppose it keeps them off the street corners cluttering up the pavements, and if they keep at it they could solve some unemployment problems, always supposing they can get some trillionair to fund them, and always supposing they could con enough of the unemployable to go to sea to pick up the bits.
Insurance might be a problem, though.
Or is it a relocated April Fool?
My best to the family, Willis.
Thanks, dawg, always good to hear from a man who actually has more sea-miles under his keel than I do.
Bizarre as it seems, these folks are indeed serious. Go figure.
Hugs to you and yours,
w.
Do they need some serious money?
please please, I’m a farmer. send me money as I wish to crowd fund a court case agains all who wish to steal my naturally occurring plant food. I NEED it.CO2
Once again, the devil is in the details.
Phytoplankton aren’t plants. They’re cyanobacteria and small, unicellular eukaryotes, ie microalgae. Plants are multicellular, with chloroplasts descended directly from cyanobacteria or from algae, whose chloroplasts also originated from cyanobacteria.
Phytoplankton are diverse, and a fascinating study. Microalgae include diatoms, dinoflagellates, coccolithophores and green algae.
Mostly true, but meaningless for the purposes of this discussion. And some are indeed plants, as NASA points out (emphasis mine):
I also find the following:
And?
w.
NASA labors under the misconception that algae are plants. They’re not.
Which phytoplankton are plants?
You seem to be laboring under a misconception that I care about your biological hair-splitting …
w.
Not hair-splitting. It’s one of the most important phylogenetic issues of the past decade. And, for anyone with an interest in the oceans and CO2, understanding marine phytoplanlkton is critical.
In phylogeny, some lumpers have proposed including green algae in a clade (variously named) with plants, or even just including them under the classical Linnean Kingdom Plantae. But in that case, then unicellular and colonial choanoflagellate protozoa would have to lumped together with Kingdom Animalia (metazoans).
Same goes for the unicellular ancestors of fungi. Yeast, though unicellular, are fungi because they “devolved” from multicellular fungi. There’s also a group of plants with members species both single-celled and multicellular.
The problem of paraphyletic classification arises when modern cladistic taxonomy, based upon phylogeny is shoe-horned into anatmoy-based Linnaean systematics.
This is phylogenetic inside baseball, so few might be interested, but here it goes. Algae are photosynthetic eukaryotes. Most are unicellular. Those which form marine phytoplankton are microscopic microalgae. “Green algae” is probably a monophyletic group, but hugely diverse. Marine green algae phytoplankton are microalgae, mainly coastal, so mainly uninvovled in Willis post. (I’ll spare any readers the lengthy names of these groups.)
However colonial and even multicellular marine green algae exist. The latter are a kind of “seaweed”, a highly diverse, polyphyletic common term. It’s not a clade, ie a natural group sharing a common ancestor, unless you go so far as to be meaningless and wildly paraphyletic. Any way, the seaweedy group is attached to the seafloor rather than floating, like the green microalgae.
Most green algae in the sister group of marine algae (micro and macro) live in freshwater and even on land. It’s from this class that land plants (embryophytes) most likely evolved. They have cellulose in their cell walls, store carbohydrates as starch and use chlorophyll a and b. However they reproduce differently, in both sexually and asexual phases. And of course, they’re usually unicellular.
So, if you attach this class of green algae to the plant kingdom, then that leaves both Chlorophyta and Plantae paraphyletic. So in this century some lumpers have argued for including all green algae with plants, with a few names suggested for the group. Splitters adhere to the classification of prior centuries.
In any case, marine phytoplankton green algae are less closely related to land plants than are freshwater Chlorophyta.
“Alga” itself is highly polyphyletic. It used to even include “blue-green algae”, which are bacteria, not eukaryotic.
https://www.researchgate.net/publication/215888466_Phylogeny_and_Molecular_Evolution_of_the_Green_Algae
PS: Just as green algae have cellulose, choanoflagellates make collagen, yet nobody that I know of considers them animals. They do however resemble sperm, and, as noted, form colonies.
From a choanoflagellate colony to protosponge is a few easy steps, chiefly evolving signaling chemicals and cllular differentiation. The feeding cells of sponges, choancytes, are practically identical to their free-living choanoflagellate kin.
“Choano” refers to the collars or skirts which collect bacteria for the heterotrophic, motile eukaryotes to eat. “Flagella” of course denotes the whip-like propulsive structure which they share with similarly-shaped metazoan sperm cells.
Off-topic, I know.
Red algae evolved from other eukaryotic cells endosymbiotically incorporating other alga. Then brown algae, ie multicellular seaweeed, evolved from them.
Hence, the polyphyletic* status of “seaweed”.
*Pertaining to a group of organisms derived from more than one common evolutionary ancestor or ancestral group and therefore not suitable for placing in the same taxon.
Paraphyletic: Of a group of organisms descended from a common evolutionary ancestor or ancestral group, but not including all the descendant groups.
Monophyletic: Of a group of organisms descended from a common ancestor, including all its descendents.
The plant-green algae case is similar to the tetrapod-lobe-finned fish situation and so many other evolutionary transitions in the history of life on Earth. We tetrapods are traditionally rated a new, higher level taxon, but are at the same time a subgroup of lobe-finned fish, more closely related to the (practically amphibian) lungfish than to coelacanths, the only other surviving lobefin group.
John Tillman November 15, 2021 11:41 am
That may well be … for phylogeneticians. For the purposes of this discussion is meaningless.
While understanding phytoplankton and their role in the ocean is assuredly critical to many people, whether phytoplankton (Greek for “drifting plants”) are plants, or archaea, or eukaryotes, or microalgae, or whatever, is meaningless for the purposes of what we’re discussing here.
Or to quote you:
The great division in plankton is between zooplankton (drifting animals) and phytoplankton (drifting plants). And while it’s clearly important to you to delve into the minutiae of the taxonomy of various kinds of phytoplankton … me, I’m gonna bow to your superior knowledge and pass.
For me what’s important is this. The reason these folks want to put light down deep into the ocean is NOT to enhance the growth of zooplankton.
It is to enhance the growth of phytoplankton, because like plants, they utilize the energy of light to power their lives … and for our purposes, that is sufficient.
My best to you, and thanks for your interesting short course in the phylogeny of plankton.
w.
You’re a great hugs-all-round guy until someone points an error. Then you have this snarky snapback which does you no credit. Take the correction on the chin, and be thankful for it.
Hokey, just what “error” are you talking about. I described phytoplankton as plants. He pointed out that that was the case until a few decades ago, when they were reclassified into several other phyla … and?
I agreed with him on most things, and pointed out that while that’s of great interest to phylogeneticists, for the purposes of this post it makes no difference. The phytoplankton are beings who convert light to energy, which is what matters.
Or, as he said:
Heck, even the document from MyOceanResources calls them “plants” … good enough for them, good enough for me.
So I thanked John for the information on phytoplankton, and as near as I can tell, we parted friends.
If he feels I was snarky, he’s free to say so, and if he felt that way, I’ll apologize. His contribution was interesting to me, I learned something.
But jerks like you taking second-hand offense at something I said to a third party? All I do with that is point and laugh.
w.
Sunlight fueled autotrophs. SFA.
Just wait until humans transplant chloroplasts into our skin.
Blood sugar too low? Rebreath exhaled CO2 and stick your hand out into the sunshine.
Little and big green men!
I used to place a dummy nonsense paragraph in every report to check to see who had actually read the report.
If you can read this …
Much like my frequent inclusion of a page which contained only: “This page unintentionally left blank.”
That cost me a cuppa… and almost the keyboard. I use to work for a company where the documentation department always started each chapter on and even page number, so they had a lot of ‘almost blank’ pages. That would’ve driven ’em nuts if they’d seen it :<)
Created a whole series of user guides for a maintenece software platform for the NHS 8 years ago, every
screenshotimage in the documents was carefully doctored to include a readable word or words from the lexicon of particle physics, no one ever commented, which means they either never noticed, or they did notice, guessed it was me and then carried on with their day job.I`ll never know !
It is MUCH cheaper to bring the mountain to Mohammed.
An OTEC pumps deep water to the surface using the ocean’s heat energy. Now the phytoplankton have nutrients to grow on the surface.
Then you just have the same small matter the ECOPIA folks face, of scaling it up to the point where it makes a difference …
w.
Willis,
There was a demonstration OTEC system on the Big Island of Hawaii in the 1990s. The system generated a little electricity which was used as the power for pumping cold sea water up from beneath thermocline. The cold water was used as a coolant which was piped to provide cooling for buildings and also for arable soil.
The system was surprisingly successful. It provided very cheap air conditioning and – contrary to my expectation – suffered no significant corrosion of the pipework.
The demonstration plant proved there was no problem with scaling up but the OTEC system was of limited use. It could only operate on coasts which had no continental shelf because the pipework to bring water to shore from below the thermocline needed to be relatively short. Hence, usage of the system was limited to places such as Hawaii and parts of the west coast of India.
There being only a few places where it could be of use meant the OTRC system would not be commercially viable. There would be little demand for OTEC units and in effect each OTEC plant would be a unique ‘one off’. Despite that, at the time when I investigated it I thought it was an impressive piece of kit.
Richard
Richard, good to hear from you. One of the big problems with the Hawaii OTEC plant was … wait for it …
Fouling.
See here for details.
w.
Willis,
Thanks for your link to a recent assessment of the OTEC system. I had not seen it and I found it to be interesting. Again, thanks.
As you say, link says the observed technical problem was fouling. However, my reading of the report does not induce me to think it was found to be an insurmountable problem.
The pertinent section of the report says in total,
So, the interesting report which you link does not report any significant technical problems with OTEC. But so what?
As I explained,
It does not matter that OTEC is technically feasible when it is economically non-viable.
Richard
PS As your phraseology suggests you know, I am aware of the problem of fouling because removal of biofouling was a significant annual cost when my boat was my home, my office and my laboratory.
Thanks, Richard. I didn’t mean to infer that biofouling was the reason that the OTEC system didn’t catch on. I just meant that it illustrates how pervasive a problem fouling is.
And you are right, the problem is limited sites worldwide where the seafloor plunges to great depths near the coastline.
Regards,
w.
Same results for free (via Govt. Est. Methods):
If one wanted to upset the oceanic life cycles to cure a made up CO2 problem for less than $10 Trillion imaginary $’s… I believe broadcasting iron @ur momisugly 10mg/m^2 over a similar area would cost about $10 Trillion less (rounding to $10’s of Billions)… so by 0.1% Govt. Est. rounding methods…the whole process would be free.
Or, how about going back to burning coal? The aerosols produced kept temperatures stable following WWII.
It is only after the Clean Air Act started messing with the atmosphere that this mess started. Before that the big worry was cooling.
Once Xi convinces Kerry and Biden to pay China to put scrubbers on all their coal plants global warming is going to really take off as global aerosol levels fall
True, Doc, and we know that actually works. The Atlantic ocean receives constant iron fertilization from the mineral dust blown from the Sahara. And there was huge controversy when some Northwest American Indians did it off of the US coast. Story here.
w.
Thank you I have Been looking for this for ages thought it might have been scrubbed totally
The people involved where prosecuted I believe
there was a good illustrated article about it can’t find it now
Similar work has been don in Antarctic waters the results are spectacular to the point that it would be easy to remove man’s co2 output but it is suppressed More evidence this is about something other than climate
As a bonus the cold water an OTEC brings to the surface cools the planet without any need to cut CO2.
Thus happens because OTEC increases the mixing rate of the ocean. This is such an obvious low cost solution that governments will never consider it.
There are of course many other benefits of OTEC such as increased marine food production associated with increased upwelling as well as electrical generation from surplus energy.
How in Heck does Ontario Tourism Education Corporation (OTEC) raise cool water? Perhaps by burying tourists at sea. They probably produce some hot air but how does that help.
I tell you, man, I am SOA and it is time they were EFSW.
All this infrastructure indicates that this is about getting funding not the results
In this case a few grams of iron sulfate per hectare will cause a plankton explosion that other marine life will exploit the surplus will settle into the deep ocean and be fixed for eons
Trials of this have been done in antarctic waters with massive results , A semi commercial effort was done in the north Pacific to enhance a salmon fishery it worked a treat but the promoters where arrested the reports have disappeared from the internet
Another
CACA Verde
Idea
At least the idea is good for a laugh.
Easier and cheaper to just fertilize the phytoplankton free areas with missing nutrients. Or fly jets in the stratosphere to disperse fine sulfate particles and reflect 1% of the sunlight (should that ever be needed), which would be even cheaper than fertilizing the oceans.
The missing nutrient in all that blue area is enough dissolved CO2, the primary food for phytoplankton.
Let’s not forget what it would take to create these. If they are basically glass, you have considerable energy required to melt the glass and fabricate it, which is mostly burning CH4. Then you have to transport it to the site which is even more fossil fuel use. But I’m pretty sure no one would take this into consideration. https://www.eia.gov/todayinenergy/detail.php?id=12631
“And even if some magical transparent antifouling is invented, it’s a near certainty that they’ll still need to reapply it to the 180 billion units say once every three years”
Rain-X. Never any barnacles on MY windshield. I’m buying in early.
It’s easy to farm when you plow with a pencil.
Willis, you’ve presented a great rebuttal to the infeasibility of the MyOcean Resources concept for CO2 sequestration per the above article.
I will just add that the average global ocean temperature below the thermocline is approximately 3.5 C (ref: Physical Oceanography, Oceanic Adjustment, Ping Chang, in Encyclopedia of Physical Science and Technology (Third Edition), 2003 via https://www.sciencedirect.com/topics/earth-and-planetary-sciences/thermoclines ).
That temperature is antithetical to producing robust phytoplankton growth.
Consider the carbon footprint per meter of fiber optic cable against the biomass production capabilities of a simple artificial reef used for aquaculture (perhaps this is more properly called deliberate fouling).
I’m pretty sure that the mechanism to transmit light through fiber optic cable isn’t as simple as pointing one end at the sun..
I looked up phytoplankton aquaculture — turns out that it is a thing — and found not one mention of use of light at depth. Instead, best results (mass/energy input) seem to be obtained shoreside in near lab conditions — expensive, but far cheaper than 10 trillion.
A former coworker claimed that he’d fallen just short of getting BOHICA accepted as a military project name: per the tale, the word substitution scheme was quite mature until someone clued in a previously enthusiastic, but clueless, flag officer to the original meaning of the term. Until recently, I was skeptical that flag officers could be that gullible, but even today I rate that story more believable than this ECOPIA project.
Your most excellent post reminds me of another seriously proposed CO2 capture scheme, the ‘Sky Mine’ from Skyonics. Wrote about it in the Details chapter of Arts of Truth. Idea was to use Drano (sodium hydroxide) dissolved in a column of water thru which flue gas would be bubbled, producing sodium carbonate (soda ash) for which there is a market. Basic high school chemistry experiment.
Problem is they need a LOT of Drano, which is produced together with hydrochloric acid via the electrochemical chloralkali process. Whether steam coal or CCGT powered, making the Drano produces at least as much CO2 as can be sequestered by a Sky Mine. Renewables cannot be used because of intermittency.
Never the less, DOE gave them $25 million for a demonstrator Sky Mine. As Will Rogers once said, “We should be thankful we aren’t getting all the government we pay for.”
Thanks, Rud, that’s tragically hilarious.
Best to you and your good lady,
w.
You can make NaOH by electrolyisis of seawater without producing CO2. H2 is a by product (–> Super-Green Hydrogen!). Unfortunately Cl2 is also a by-product. Can anyone think of a commercial use for Mega-tonnes of Chlorine?
Well, one “use” was found during WWI.
I also understand that a certain despot in the Middle East has likely repeated that “use” within the last ten years on certain populations of his country, including on women and children.
Piping it into the Halls of Congress to ensure that any COVID-19 virus is exterminated would be a good use.
Any co-incidental extermination of other noxious creatures would be a side benefit.
Mega-tonnes of Chlorine?
==========
Scrubbing OTEC. As I recall the Bay of Fundy tidal project electrified the rotor to keep it clear of fouling.
Now where’s my rubber stamp….ah..
BS
Re the digression : ACRONYM – Alphabetical Collection Representing Often Needed Yardlong Monikers
The three figures tell us the true story and they tell me there scheme would never work. All that blue area is where the ocean surfaces are net emitters of CO2. The other ocean areas are net sinks. There is less CO2 in the higher temperature areas so phytoplankton gets less food to grow on. Look at the effect of upwelling of cold CO2 containing water near the equator on the west coast of South America. The cold polar waters are the ultimate sinks for CO2. Each year these sinks, with the help of a lot of phytoplankton, suck up all (natural and anthropogenic) CO2 emitted during the year. There is no appreciable accumulation beyond each year. The observed increase in concentration is the result of natural increases in emission rates.
Consider all of the CO2 emitted by undersea volcanic activity due to continental drift, which has been going on for millions of years.
Nature has the best net zero with respect to CO2. Within each year, the oceans absorb all that they emit and all of the relatively small amount of anthropogenic as well. There is no need to try to improve that absorbing ability.
co2
I look forward to contributions from you Willis. For some reason I just know I am basking in truth. Satan’s lies are everywhere. Thanks Willis.
How can the people who have been on a rant for 30 years about the evil impact humans have on the planet propose humans have an even greater impact on the planet with engineering specifically design to screw with large areas of the oceans?
Everyone in “climate science” must be smoking crack with Hunter!😳
Why not bring the nutrients to the surface? Much cheaper and with other advantages. We proposed this idea back in 2007. http://www.ecofluidics.com/OceanMixing/index.html No-one was interested.
Nutrients in smoke plumes from big bushfires in Australia already remove more CO2 than the fires generated: https://blackjay.net.au/a-bloom-as-big-as-australia/