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Using Barges to Fight Global Warming

An anonymous reader writes "Dr. Peter Flynn, Poole Chair in Management for Engineers in the University of Alberta Department of Mechanical Engineering, has developed what he would like to consider a fall back plan to help combat the effects of global warming, in northern Europe. Flynn proposes using 'more than 8,000 barges moving into the northern ocean in the fall, speeding the initial formation of sea ice by pumping a spray of water into the air, and then, once the ice is formed, pumping ocean water on top of it, trapping the salt in the ice and reaching a thickness of seven meters. In the spring, water would continue to be pumped over the ice to melt it, forming a vast amount of cold, salty water that sinks and adds to the down-welling current to re-strengthen it.'"

21 of 347 comments (clear)

  1. Quick interview on CBC by Mrs.+Grundy · · Score: 5, Informative

    Whatever the virtues may or may not be in micromanaging an incompletely understood global chaotic system by adding further human input, you all might be interested in hearing it from the horse's mouth. In this radio interview. (scroll down for links) the good doctor makes the point that he is not advocating doing this now, but rather studying the possibility in the case that we find ourselves in an emergency situation where the currents get out of whack and crazy things, like the freezing of the Thames, start happening.

  2. Oh goodie... by neocon · · Score: 3, Funny

    When we're done using barges to fight global warming, maybe we can use canoes to fight leprechauns!

  3. Hack? by gustgr · · Score: 3, Insightful

    The estimated cost is about $50 billion.


    Wouldn't be better to spend this tiny amount of money with measures to prevent and control the emission of CO2 at the atmosphere? This barges things looks like a hack to me... a really expensive hack. Would this have to be done every year? I think it is better to leave this kind of "ultimate" solution to when there is no option at all. Until then, let's try to fight the roots of the problem, not just patch it from the outside and adjourn the disaster for a few years.

    1. Re:Hack? by belrick · · Score: 4, Informative

      The estimated cost is about $50 billion.

      Wouldn't be better to spend this tiny amount of money with measures to prevent and control the emission of CO2 at the atmosphere? This barges things looks like a hack to me... a really expensive hack. Would this have to be done every year? I think it is better to leave this kind of "ultimate" solution to when there is no option at all. Until then, let's try to fight the roots of the problem, not just patch it from the outside and adjourn the disaster for a few years.


      If you researched the research, you would understand that they are not proposing this (at this time) as a solution, rather they are doing calculations to understand what it would cost to fix the problem (in this case the broken circulation of ocean water) after the fact. That is useful to be able to compare costs with those preventative measures you refer to.

    2. Re:Hack? by Martin+Blank · · Score: 3, Informative

      Coal seam fires are regularly extinguished. It's difficult and expensive, but the value of the coal burned is higher than the cost of extinguishing it -- and that's in the US, which has centuries of coal remaining to be mined.

      There's no reason that many of the coal seam fires in China could not be extinguished, other than that China does not care to spend the money on it.

      --
      You can never go home again... but I guess you can shop there.
  4. Oblig. Futurama reference by caitsith01 · · Score: 4, Funny

    Narrator: Fortunately, our handsomest politicians came up with a cheap, last-minute way to combat global warming. Ever since 2063 we simply drop a giant ice cube into the ocean every now and then.

    Suzie: Just like Daddy puts in his drink every morning. And then he gets mad.

    Narrator: Of course, since the greenhouse gases are still building up, it takes more and more ice each time. Thus solving the problem once and for all.

    Suzie: But-

    Narrator: ONCE AND FOR ALL!!!

    Leela: Well, we just need one of those big ice cubes. Someone should call the losers who are supposed to deliver it.
    [phone rings]
    Hello?

    --
    Read Pynchon.
  5. Or... by truthsearch · · Score: 3, Interesting

    Or we could let the planet do what it's always done: rise and drop in temperature and water levels. Whatever you may think humans have done to the planet, it's gone through much bigger changes before we were ever here. How about we let nature take its course and we worry about changing ourselves instead of the planet?

    1. Re:Or... by Waffle+Iron · · Score: 4, Insightful
      Whatever you may think humans have done to the planet, it's gone through much bigger changes before we were ever here.

      That's true. However, at some of those times this planet has been just about totally uninhabitable by humans. Are you suggesting that in the worst case we just kill ourselves off and then wait for the planet to recover so some new species can evolve to take our place?

    2. Re:Or... by Wyatt+Earp · · Score: 3, Insightful

      That makes too much sense and it absolves Capitalism and the United States from guilt. There is no room in the Global Climate Change arguement for past climatic shifts or any evidence of the Sun rising in output or cyclical events.

      "At least 10 to 30 percent of global warming measured during the past two decades may be due to increased solar output rather than factors such as increased heat-absorbing carbon dioxide gas released by various human activities, two Duke University physicists report.

      The physicists said that their findings indicate that climate models of global warming need to be corrected for the effects of changes in solar activity. However, they emphasized that their findings do not argue against the basic theory that significant global warming is occurring because of carbon dioxide and other "greenhouse" gases."

      http://www.journals.uchicago.edu/ApJ/journal/issue s/ApJL/v549n1/005748/005748.web.pdf
      http://news.mongabay.com/2005/1001-duke.html
      http://en.wikipedia.org/wiki/Climate_change#Solar_ variation
      http://en.wikipedia.org/wiki/Timeline_of_glaciatio n#Pleistocene_glacial_cycles
      http://en.wikipedia.org/wiki/Younger_Dryas

      Nope, we can't talk in this arguement about how the planet's climate has shifted in the past, but must blame the US, George W. Bush and/or Capitalism for Global Warming.

    3. Re:Or... by truthsearch · · Score: 3, Interesting

      Yes.

      Or we spend the of thousands of years it'll take before it becomes uninhabitable to learn how to live for generations in space.

    4. Re:Or... by Coryoth · · Score: 4, Insightful

      At least 10 to 30 percent of global warming measured during the past two decades may be due to increased solar output rather than factors such as increased heat-absorbing carbon dioxide gas released by various human activities, two Duke University physicists report.

      I think you'll find the last IPCC TAR concluded much the same with regard to the effects of increased solar output. Of course they also concluded that the majority of observed warming was most likely due to anthropogenic CO2. Take a look at this chart showing how well CO2 correlates with the historical temperature record and realise that on that scale current CO2 levels are almost 5.5: that is quite literally off the chart. Given that we have good reason to believe in causation (absorption spectra of atmospheric CO2) it should be of concern. Yes the climate has fluctuated quite a bit in the past. Yes it is a complex chaotic system. That doesn't mean messing with it more is a good idea.

      Nope, we can't talk in this arguement about how the planet's climate has shifted in the past, but must blame the US, George W. Bush and/or Capitalism for Global Warming.

      I'm not sure attacking a strawman helps either. I don't think anyone with an actual clue is blaming George Bush and Capitalism for causing global warming, and certainly people with a clue will readily accept that historically the climate has been variable - that doesn't mean the the current trend in variation is going to in any way beneficial (or even necessarily neutral). Sure there are all those people without a clue who follow the issue as a politicised debate. There are equally shrill and stupid voices on both sides of this argument though. Just ignore them - the more attention we pay them the more pointlessly polarised this debate becomes.

      Jedidiah.

  6. Energy required to do this? by digitalgiblet · · Score: 4, Interesting
    First thought I have is "how much energy would be required to do this?"

    Eight THOUSAND barges pumping enough water to make a layer seven METERS thick? EACH YEAR.

    I'm no scientist, but it seems to me we'd be pumping out some greenhouse gases somewhere in this mix...

    Would these be nuclear barges? No greenhouse gases, but instead spent nuclear fuel to contain for a really long time.

    They estimate $50 billion USD to do this, but they don't say if that is the ongoing yearly amount.

    Maybe easier just to genetically engineer all the plants and animals to deal with the new conditions rather than try to control the ocean currents (and for the humor impaired -- that sentence is meant as a joke).

  7. There's no one-size-fits-all fix for this mess by StefanJ · · Score: 4, Interesting

    When the bought-off pundits, ideology-addled fanboys, and fossil fuel industry flaks run out of viable talking points in their F.U.D. campaign, the debate over global warming won't be over whether it is happening, but on the most effective and economical ways to slow it down and cope with its effects.

    There won't be a one-size-fits-all fix. Conservation and more efficient vehicles will be a big part of it. Environmental remediation projects, like reconstructing coastal wetlands to help them deal with floods and storms, will be another.

    Stange notions like seeding the ocean with iron filings, and this oddball idea, are another possibility for the "arsenal" of fixes. I'd definitely put some money into researching them. Figure out the kinks sooner rather than later, so they'll be available if we need them.

  8. Sounds like Brewster's Millions... by RyanFenton · · Score: 4, Interesting


    This scheme reminds me somewhat of some of the (intentionally) money-wasting schemes of the movie Brewster's millions. Large machines sent thousands and thousands of miles to mechanically move an almost unimaginable ammount of water, along with the fuel needed to do all of this large-scale de-facto terraforming (aquaforming?).

    That...or the Futurama episode where it was revealed that global warming had to be fended off with giant ice cubes from Haley's comet every once in a while.

    What this scheme ammounts to is a color shift of a rather small portion of the earth's ocean, for a rather small ammount of time, and enormous cost.

    You could achieve the same dynamic by:

    A) Using some cheaper coloring to semi-permanantly paint large portions of land environments with an already severely limited biological environment, including deserts, rocky areas, upper mountain ranges, near-permafrost (permafrost is already white most of the time), etc. Longer-lasting and cheaper than the ice-cube in the ocean effect. Could be undone with darker color later if needed.

    B) Genetically engineer and feed cryophillic bacteria with light pigment in near-arctic ocean areas. Either have it continuously expell bouyant light-color material as part of the life cycle, or else have the body stay boyant and un-edible by further bacteria after death. If this is feasible, and self-sustainable, we'd have a meaningful, if limited engineered biological terraforming. Similarly can be undone with darker color later.

    Those are just two quick ideas - I'm sure there's a lot others that would work to do color-based terraforming. Are there any special reasons why this barge idea would... hold water still above such ideas?

    1. Re:Sounds like Brewster's Millions... by FooAtWFU · · Score: 4, Interesting
      How about cities? This article (good lord, this must by my sixth post linking there in this discussion :) notes a potential urban contribution:
      A mere 0.5 percent change in Earth's net reflectivity, or albedo, would solve the greenhouse problem completely. The big problem is the oceans, which comprise about 70 percent of our surface area and absorb more light because they are darker than land.

      When it comes to increasing albedo, it would be wise to begin the discussion by introducing positive measures that can be easily understood and are close at hand. Reflecting sunlight is not a deep technical idea, after all. Simply adding sand or glass to ordinary asphalt ("glassphalt") doubles its albedo. This is one mitigation measure everyone could see--a clean, passive way to Do Something.

      A 1997 UCLA study showed that Los Angeles is 5 degrees Fahrenheit warmer than the surrounding areas, mostly due to dark roofs and asphalt. Cars and power plants contribute, but only a bit; at high noon, the sun delivers to each square mile the power equivalent of a billion-watt electrical plant.

      This urban "heat island" effect is common. But white roofs, concrete-colored pavements, and about $10 billion in new shade trees could cool the city below the countryside, cutting air conditioning costs by 18 percent. Cooler roads lessen tire erosion, too. About 1 percent of the United States is covered by human constructions, mostly paving, suggesting that we may already control enough of the land to get at the job.

      Paint the cities white, you'll save oil for air conditioning costs AND make for a more reflective Earth.

      The article also suggests burning lots of sulfur-rich coal in western Pacific island nations, resulting in more clouds over the ocean and a higher albedo.

      --
      The World Wide Web is dying. Soon, we shall have only the Internet.
    2. Re:Sounds like Brewster's Millions... by arkhan_jg · · Score: 3, Informative

      Because he's not suggesting this as a 'fix' to the albedo, but a way to provide a big stream of cold salty water at the north end of the global conveyer. Why go to all that trouble?

      The global conveyer transports hot water from the equator to and western coast of europe, including the UK, keeping that part of europe warmer and more temperate than it's latitude would otherwise make it. The warm water cools, drops down, and returns in a reverse current going south. Too much fresh water at the northern end of the conveyer, from melting fresh water ice at the pole, and russian rivers, dilutes that heavy salty water, and weakens (and could eventually stop) the return trip of the conveyer. The conveyer weakens or even dies, and the UK gets a lot colder, causing all sorts of problems. This 'fix' would strengthen or even restart the conveyer. The 50 billion gives you an idea of how much it might cost us in the medium term if we ignore global warming, just to 'fix' one part of the problem.

      Hopefully, politicians will look at this idea, not as something to do now, but something to convince themselves to do something about global warming (i.e. CO2 and methane emissions) before we have to start planning on projects like this. There's a good chance that the global conveyer shutting down will happen in my or my children's lifetime if we do nothing, and I'd rather not have to seriously face a plan like this.

      --
      Remember kids, it's all fun and games until someone commits wholesale galactic genocide.
  9. Re:CO2 output? by Dr.+Cody · · Score: 5, Funny

    Hot damn, I never thought of it that way! Thanks for calling us on that before we went through the trouble of sending several thousand barges out to sea.

    Sincerely,
    Dr. Peter Flynn

  10. Details from the paper by SiliconEntity · · Score: 3, Interesting

    The original paper is unfortunately not available without a subscription, but it has considerably more detail.

    The cost breaks down as a capital outley of 45 billion dollars for the barges and equipment; and operating expenses of 1.3 billion dollars per year. The barges would be wind powered for the pumping operations so no substantial CO2 is generated.

    8100 barges, with a wind power system, a low volume pump and two high volume pumps per barge. 32 helicopters, 4 harbors, 4 air bases and 1 control center, for the Thunderbirds, I guess.

  11. Wisdom from the TV Sitcom "Dinosaurs" by Pollux · · Score: 3, Insightful

    The TV sitcom "Dinosaurs" was such a wonderful show. It was an excellent satire, paralleling the Dinosaur's "modern" world with our own. As soon as I read this article, I immediately thought of the final episode of this sitcom.

    In the final episode, a comet is heading towards the planet, and the "We Say So" corporation devises a way of destroying the comet using "modern" technology, only to find that it has a consequence. Each "solution" cause a larger and larger problem, only to be "fixed" with another "solution", causing an ever-growing problem. I forget the entire sequence of events, but in the final stage, they kill all the plant life on the planet. They figure that to bring the plant life back, they need to make it rain. Rain is formed by clouds. Clouds are formed by erupting volcanos. So, naturally, forcing all the volcanos to erupt will cause clouds to form, causing rain to fall and restore the plant life for all the earth. The episode finishes with the corporation detinating bombs inside volcanos, causing all the volcanos to erupt, blackening the sky, causing the start of the ice age.

    Words of wisdom from Dinosaur Earl Sinclair: "It's so easy to take advantage of nature because it's always there, and technology is so bright and shiny and new."

    Let the Earth take care of nature. We're so focused on manipulating nature for the survival of every single life on Earth, we lose site of the fact that every now and then, nature has to correct our mistakes to restore its own balance, whether in the form of a plague, a change in the weather patterns, or an ice age.

  12. Use the excess CO2 to make dry ice by bigtrike · · Score: 3, Funny

    I have an even better idea. Why don't we use all of the extra CO2 in our atomosphere to make dry ice? Everyone knows that dry ice is way better than water ice at cooling things down, so it will be much better for cooling the planet down. We can even dump it in the ocean to replace the melting polar ice caps!

  13. Fe fertilizer -8B tons C, Fossil fuels +4B tons C by MacDork · · Score: 4, Informative
    this article says, it's not clear that small quantities of iron will do the trick.

    I'll see your five year old national geographic fluff piece, and raise you a two year old government study.

    simulations of iron fertilization of the oceans in the Southern Hemisphere initially showed that almost 8 billion tons of carbon would be absorbed by the ocean each year. Yet, after 500 years of continuous fertilization, the net increase in absorption would be less than 1 billion tons of carbon per year.

    Now, considering that fossil fuels contribute roughly 4-5 billion tons of C to the atmosphere annually, and we've got about 100 years of fossil fuels left... How in the hell is this not a perfect solution? Oh yeah, that's right... too many global warming chicken littles out there are going to have egg on their face if atmospheric C is reduced to pre-industrial levels and global temps are still rising thanks to the simple fact that the sun is getting hotter. We wouldn't want to actually test that "greenhouse gases cause global warming" theory, now would we? Better just stick to those computer models...

    Oh no! I'm challenging global warming rhetoric with scientific studies! Damn!! There goes my Karma! *sniff* Goodbye sweet Karma <sarcasm />