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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.'"
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?
Developers: We can use your help.
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).
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.
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?
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.