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View Diary: The Antarctic Half of the Global Thermohaline Circulation is Collapsing (215 comments)

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  •  Discovery Channel's 'Project Earth' had some (6+ / 0-)

    interesting pilot projects with applications that may bear on this problem.

    The one I'm thinking of was an artificial upwelling using long tubes with floats and mechanical, wave driven pumping of deep water up to the surface, (3D printing could improve the manufacture of pump valves). They were looking into nutrient transport to cause two stage algae blooms, but halo or thermo clines could also potentially be targeted with this method.

    Here's one abstract of the experiment. If you Google 'geoengineering, Discover channel, wave, upwelling', there's another pdf from the Hawaii end of a similar study and a number of other links.

    I'm not crazy about geoengineering, it has a lot of potentially significant unintended consequences, but we're going to have to start looking into it and I think this experiment should be followed up on.

    Information is abundant, wisdom is scarce. ~The Druid.
    ~Ideals aren't goals, they're navigation aids.~

    by FarWestGirl on Wed Mar 05, 2014 at 02:04:10 PM PST

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    •  Neat stuff (3+ / 0-)
      Recommended by:
      FarWestGirl, Lujane, VA gentlewoman

      We could get a lot more from wave a tide energy, I think.

      A true craftsman will meticulously construct the apparatus of his own demise.

      by onionjim on Wed Mar 05, 2014 at 03:49:59 PM PST

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      •  Definitely, wish that would be focused on more, (4+ / 0-)
        Recommended by:
        onionjim, A Siegel, Lujane, graceadams830

        talk about inexhaustible!

        We need to move a chunk of GDP away from looking for and exploiting fossil sources and turn it towards an array of renewable sources and climate change research & mitigation. ::sigh:: Ain't gonna happen until we demand it, though.

        Hey, break a leg in the studio! Let me know how it went. :-)

        Information is abundant, wisdom is scarce. ~The Druid.
        ~Ideals aren't goals, they're navigation aids.~

        by FarWestGirl on Wed Mar 05, 2014 at 04:22:48 PM PST

        [ Parent ]

        •  Ahh break a leg (1+ / 0-)
          Recommended by:
          FarWestGirl

          looks like not till the 25th. All good, thanks, I will.

          A true craftsman will meticulously construct the apparatus of his own demise.

          by onionjim on Wed Mar 05, 2014 at 04:32:08 PM PST

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        •  It will take $2trillion/year for foreseeable (0+ / 0-)

          future of printing press money--but if we move now, maybe we can bribe fossil fuel firms to barter reserves for income stream from smart national electric grid (needed to integrate more than about 20% wind and solar into grid), wind, solar, and geothermal. Enhanced geothermal systems are made by drilling down to hot rocks, fracking hot rock reservoirs, bring up hot fracking fluid through a heat exchanger and back down to the hot rock reservoir; while a second loop of fluid gets the heat in the heat exchanger and spins a steam? turbine to generate electricity.  But foreign aid will take 9 times as much as what we can do in the United States and barter for fossil fuel reserves.  So we have to give away the renewable energy equipment in foreign aid and pay cash for the fossil fuel reserves to keep them from being burned.

    •  That articial upwelling is Ocean Thermal Energy (0+ / 0-)

      Conversion.  As a source of electric power, you come out only about 2% to 3% ahead.  As a source of fresh water I suspect it could be crossed with solar distillation of seawater and boosted with PV solar power to help pump seawater for cooling, air saturated with water vapor, and  condensed water vapor which is fresh water.  Wikipedia suggests stacking about ten solar stills on top of each other.   Fresh water and energy are the two fruits of civilization most will miss the most.

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