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Pentagon Climate Change Author Interviewed

cynical writes "Just in time for the opening of The Day After Tomorrow, the futurism/technology/environment blog WorldChanging has an interview with futurist Doug Randall, co-author of the "Abrupt Climate Change" scenario [PDF] commissioned by the Pentagon earlier this year. The report generated a storm of controversy a couple of months ago, and drew attention to the possibility that global warming could disrupt things enough to trigger a rapid-onset ice age. Now that the furor has died down, Randall can talk about climate change, how the report came to be, and just what he thinks about the new disaster movie."

20 of 385 comments (clear)

  1. Day After Tomorrow said to be terrible by Anonymous Coward · · Score: 5, Informative

    People in audiences have apparently found it incredibly funny... too bad it isn't a comedy. It's based on a book by Art Bell, the Coming Global Superstorm. I hear the only thing that would've made the movie worse is if they ended up defeating nature by uploading a virus they wrote on a Mac.

  2. Re:That movie looks so awful by will_die · · Score: 2, Informative

    Independence Day was not that bad of a summer action movie. Decent plot, storyline while a farfetch was consistant, nice special effects.
    If they wanted compare it to a bad movie they could of said from the director of Godzilla.
    However from the trailer this could be worse; but probably not as bad as Sky Captain.....

  3. From the makers of Independence Day by wobedraggled · · Score: 3, Informative

    I see alot of people bashing the movie soley on this line.....I have the opposite feeling, by stating that up front you know EXACTLY what you are in for, which is a special effects romp with a thinner than air story line. It's like a two hour movie ride. I think everyone needs to see a silly camp movie once in a while and stop being so damn critical...

    --
    Ubuntu- Linux for human beings.
  4. Re:Can someone calrify by StacyWebb · · Score: 3, Informative

    What happens in Theory is that when the ice caps melt and the flow into the sea currents then the actual sea temp drops thus causing the air temp to fall in turn leading to global freezing.--- this only takes around 10,000 years.

  5. Re:Can someone calrify by gowen · · Score: 5, Informative

    It does, and this gives an influx of fresh water in the Polar Oceans. In a normal freezing season, theres extensive rejection of brine, which produces dense, saline water, which sinks to form water masses usually called Deep Water and Bottom Water. These form a large part of the Thermohaline Circulation (THC), a global scale conveyor belt of water, of which large scale surface currents like the Gulf Stream are but a part. Turn off the dense water formation at the poles, and that may be enough to retard or stop the THC.

    If that turns off, you switch off the major heat transport mechanism from the equator to the poles, and that means abrupt cooling for the mid-latitude and polar regions.

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    Athletic Scholarships to universities make as much sense as academic scholarships to sports teams.
  6. Re:Can someone calrify by arivanov · · Score: 5, Informative

    There was a number of programs on BBC/Discovery in the horizon series. One of them is about global warming, the other one was about the fall of the Maya empire which happened during one of these abrupt events.

    The thing which people do not understand about global warming is that it sooner or later brings the gulfstream to a standstill due to decrease in water salinity in the arctic. As a result New England, Iceland and most of Wester Europe freeze as the temperature drops down by up to 9C. After all, London is at the lattitude of Alaska and the only thing keeping it warm is the Stream.

    Latin America overheats and goes into a draught. There are some effects going as far as changes in the monsoon patterns and draughts in South East Asia.

    This is also the reason why you cannot indiscriminately use historic data sets about climate without weighting. This is also the reason why a recently published right-thinking-tank flamebait (honoured on Slashdot) that the original global warming research is flawed because they did not use all data including Texas is what it is - flamebait. Texas is probably the only place to go cooler in such an event because the rain that currently drops on Latin America will drop there.

    The simulations have been run many times and the result is always the same. In fact sod the temperature, the most scary fact of global warming is the gradual decrease of flow in the antigulfstream and water salinity which have been picked up for the last several years.

    For a lamers overview see this: http://www.bbc.co.uk/science/horizon/2003/bigchill .shtml

    For non lamers - see Science as well as a few other magazines where the results have been published over the years

    Also, I am not amazed that the Pentagon has asked for this. The most scary part of global warming is the stop of the gulfstream and the 2+ billion of hungry and thursty armed people on the move. Some of them with nuclear weapons...

    --
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  7. Models Required, Apply Within by Whitecloud · · Score: 2, Informative
    While you were working on this, what surprised you the most?

    I was actually surprised about how much the scientific community knows about the history of climate change, and how little it knows about the future of climate change...

    sounds like we need a whole bunch of Earth Simulators asap!

    --

    Do you need a website upgrade?

  8. Re:Can someone calrify by Anonymous Coward · · Score: 2, Informative
    this only takes around 10,000 years
    Actually, the usual estimates are somewhere from 10 to several hundred years. The fresh water budget is uncertain, since no one is too sure where the Russian rivers will end up flowing to.
  9. Re:That movie looks so awful by Quarters · · Score: 3, Informative
    Your problem is that you are educated and have an opinion. In other words you are not the MPAA's target marget.

    ID4 grossed close to $306 Million in the US domestic market(1996 dollars) and is soon to have it's third DVD release. It was the highest grossing movie the year it was released. By any capitalistic measure it was/is an excellent movie.

    All of that points to the fact that a lot of people went to see it--some probably multiple times. If it's garnered three different DVD releases then there is strong evidence that people are buying it for their collections even now. To all of those people the phrase, "from the director of Independence Day" is a very positive thing.

  10. Re:And cue... by gowen · · Score: 2, Informative
    predict the state of weather a couple of years from now
    Climate is not the same as weather.
    Climate is not the same as weather.
    Climate is not the same as weather.

    Weather prediction like trying to approximate where all the eddies will appear when you pull the plug out of your bathtub. Climate prediction is estimating how long the tub will take to drain.
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  11. Climate Change resources with an eye on reality by conkdg · · Score: 5, Informative

    Worldwatch Institute has a Climate Change Online Feature targeting The Day After Tomorrow, and trying to use this movie as a chance to educate people about more reasonable climate change realities.

  12. Re:And cue... by gowen · · Score: 3, Informative
    "your model is valid but this particular premise is wrong"
    Lomborg doesn't have a model.
    no-one has yet said ...here's where you made an error in a calculation" or "that reference you cite actually says something else
    Do a little more research then. Theres reams of the stuff, including almost an entire edition of Scientific American.

    (PS : you'll get more abundant critical responses (and politer ones, too) if you submit to peer review, something that Lomborg seems to think beneath him -- or too unprofitable.) http://www.mylinkspage.com/lomborg.html#WAS
    --
    Athletic Scholarships to universities make as much sense as academic scholarships to sports teams.
  13. Re:Question by michael_cain · · Score: 2, Informative
    We know that over the last 100 years that the world-wide temp has gone up by roughly 1 degree. But before that time period, there is no climate data at all.

    There are no direct measurements, but there is a considerable indirect record. During parts of the 1700s, the Thames River froze over on a regular basis, with ice thick enough to support a horse and sleigh. Ask any of the British folks who read Slashdot how long it has been since that happened. Around 900, the climate in the Northern Hemisphere was warm enough that vikings could colonize Greenland. IIRC, some of the pressure for the Vikings to spread was due to a population boom caused by increased crop yields due to warmer weather. Using both computer models and knowledge of the relationship between temperature and grain yields, it is possible to make shrewd guesses about the mean temperatures at those times.

  14. Re:And cue... by gowen · · Score: 2, Informative
    How about proving that any of the links I provided are wrong regardless of their source?
    And how might I do that. Refer you to the last 20 years of "JGR (Oceans)" and "JGR (Atmospheres)"? How about the NCAR Climate System Model, which gives good results over 300 years without flux adjustment, or the Hadley Centre's HCM5, which generates a realistic for 1000 years stable climate (with non-greenhouse CO2) without flux adjustment?
    --
    Athletic Scholarships to universities make as much sense as academic scholarships to sports teams.
  15. Re:It'll happen anyway by www+www+www · · Score: 3, Informative
    The enviornment will change anyway. History, Arechology and other sciences have shown us that. Even before mans time of rule here the climate was in constant flux. We've had ice ages, tropical times and the inbetween.

    What makes the scientist worry are graphs like these. The PBS pages contain much info about the global warming debate.

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    bring it on! --- JFK

  16. Re:They aren't looking at the Sun. by Anonymous Coward · · Score: 1, Informative

    Actually, sunspot activity cause a *lower* thermal output of the sun.

    Coronal Mass Ejections cause a lot of energy to be emitted, but that energy comes from the thermal output of the sun and is dispersed in kinetic energy losses in getting the 93,000,000 miles to us.

  17. "Eskimos" is incorrect. by FlyingOrca · · Score: 2, Informative

    Try "Inuk" (EE-nook) for singular, "Inuit" (INN-you-it with the Is elongated almost into Es) for plural. The language (not that anyone here besides me likely cares) is Inuktitut (ee-NOOK-tee-toot).

    "Eskimo" is a derogatory term originally applied by Francophones ("Esquimaux") and meaning "eaters of raw meat".

    Cheers!

    --
    Corruptissima re publica plurimae leges.
  18. Re:Question by TheWizardOfCheese · · Score: 5, Informative

    We know that over the last 100 years that the world-wide temp has gone up by roughly 1 degree. But before that time period, there is no climate data at all. So, how can we conclude that this is unnatural or not?

    There is not much direct temperature evidence before the 19th century, but there is plenty of inferential evidence. Isotope ratios in Arctic ice give a good record going back 10s of thousands of years. This might sound doubtful, but the earlier part of this evidence can be cross checked with more obvious sources, such as tree rings (more than a thousand years) and sediment layers in lakes (thousands of years.) There is a great deal of fossil evidence, of which the best comes from pollen and hard-shelled micro-organisms (e.g. diatoms.) These (when embedded in countable sediment layers) tell us when conditions allowed the organisms to live in a particular locale. Beetles are also very useful, with many temperature-sensitive species having conserved their morphology for quite a long time (a million years.) In general, the most useful species are small organisms with hard parts; these leave more remains and travel less than larger organisms (a rare fossil could easily be in an atypical location.) Geological evidence tells us about glaciations over quite long time scales (millions of years.)

    All of these sources of evidence are beset with problems and complications, and therefore highly technical (i.e. beyond a /. post.) However, all of them are investigated by groups of very intelligent and trained people who know about the problems and do their best to compensate. Furthermore, you must remember that our picture of the past is a jigsaw puzzle and every piece must fit; for instance, it is not enough to observe that ancient beetles whose hard anatomy is the same as modern might have had different soft anatomy (and thus different temperature sensitivity.) You must also explain why the other evidence appears to match the beetles.

    maybe the world gets a little hotter ever couple of 100,000 years too???

    The world's climate does indeed vary on many different timescales and for many different reasons - it even gets a little hotter every 100,000 years or so! In fact it's in a hot period right now; that is why you haven't noticed that we are living in an ice age. The reason for the cycle is not magnetic fields, but rather the shape and timing of the earth's orbit around the sun (the amount of eccentricity, the amount of "wobble", and the timing of northern summer relative to the orbital position are not constants.) This is the "Milankovich cycle."

    The people who think that human activity might make dramatic short-term changes in the earth's climate know all this and try to take it into account.

    --

    "The good reader is a rarer swan than the good writer."
  19. Re:And cue... by gowen · · Score: 2, Informative
    It has also been about 5-1/2 years since that model was announced so I would expect to see about 0.1C of warming since then
    Theres noise and there's trending. Over 5 years, the predicted trend is less than the noise. Over half a century, the predicted trend is greater than the noise. As to comparison between models, I suggest you read the newer Future prediction sections about NCAR CCM with results on THC retardation and
    some climate models are supposedly so accurate, why do we have so many different models that contradict each other?
    The CMIP experiments show that the most thorough and complete climate models are now converging, especially over decadal (and longer) timescales. The rest, to some degree or other, suck.
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  20. Re:And cue... by MrResistor · · Score: 2, Informative

    I consider myself to be such an environmentalist.

    I think the big problem with nuclear power is that it isn't really "no emmisions". Yeah, a nuclear plant doesn't belch smoke in the air, and that's great, but it still produces byproducts and waste that are undeniably hazardous. Nuclear power would be a lot less unpopular if we had a real, viable solution to the nuclear waste problem (and no, Yucca Mountain doesn't count).

    Another problem with you nuclear power folk is that you seem to think that nuclear is the only emmision-free power source. It isn't. I stick to talking about solar, because that's what I have personal experience with, but there are plenty of others, all of which are more or less viable for particular regions and climates.

    As someone who has lived off-grid, with solar power, I feel quite confident saying that most of the arguements against its viability are total bunk. The only real problem solar has is storage, and I think that should be solvable with fuel cells.

    --
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