Roselin asked in EnvironmentGlobal Warming · 6 months ago

What questions do you have about the use of climate models?

21 Answers

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  • 6 months ago

    How accurate they are in predicting effects [and future actions] in Climate Change.

  • Vela
    Lv 6
    6 months ago

    why do anti science right wingers think models is all scientists have?

  • 6 months ago

    1) Why does the comparison done by Professor John Christie and presented to Congress show that the models run hot?

    2) If the climate sensitivity to CO2 is not known, according to the IPCC, to within a factor of three, how can you expect accurate answers from any model based on that sensitivity?

    3) Why are modellers slow to discard poorly performing models? Most of the results we get to see via the media are ensemble averages of many model runs. That implies that individual runs are not accurate and that models differ greatly between themselves. A cynic might think that they like to keep both the low and high reading models going so that no matter what happens to the climate they will have a model to match. Then they can say, triumphantly, no doubt: "It was predicted by the models!"

    4) I believe many models have just been continually refined since FORTRAN days. Does anyone know exactly how they work, I wonder.

    5) Should the lack of programming skill, according to people who have seen the code, in the CRU code be highlighted as an issue? Many issues are detailed in the HARRY_READ_ME.txt file that was leaked along with the CRU emails in the ClimateGate event.

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    • Dirac
      Lv 4
      6 months agoReport

      Yes, I can see why, there was pretty much no way to deny after that without sounding like a moron.

  • 6 months ago

    The historic instrumental record shows temperatures are rising, and the rate has accelerated since the 1970s. This is confirmed by more modern land, sea, air, and space-based systems. Spectroscopic results from satellites show enhanced absorption by CO2 as levels rise. Measurements of downwelling IR show CO2 levels increasing radiative forcing. The fact that the planet has warmed due to our CO2 emissions has been confirmed by experimental results ... not models.

    All science operates on the basis of models of reality. Newton's second law a = F/m is a mathematical model of reality. Scientists use models to frame the questions they need to answer. Newton's law has no mention of velocity. Does it work if something is moving close to the speed of light? Similarly, if models suggest feedbacks from water vapour, how big is that effect? So they use models as a reference against which experimental results are checked to adjust models, and then see what implications need to be checked ...

    • Horse6 months agoReport

      "Plethora." Another dope trying to sound smart. lol

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  • Anonymous
    6 months ago

    Why is mainstream climate science based almost entirely around climate models when climate model forecasts have shown a 100 percent failure rate?

  • 6 months ago

    No questions. Pretty obvious.

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    • ron h
      Lv 7
      6 months agoReport

      Yeah, but even the smartest man who ever lived (donnie, the tRump) doesn't understand that analogy.

  • 6 months ago

    It's the difference between sitting on your XBox couch and driving an actual race car at 230 MPH.

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    • Daro
      Lv 7
      6 months agoReport

      Not so much "different perspectives" as what we get from IPCC. No matter what data is accumulated from all different sources the conclusion after politicians and their handymen (so called scientists) get done is always the same. "AGW caused by high living standards and only socialism can save us"

  • 6 months ago

    Using a model to claim a 1/10th degree change over each decade? I think you start to see the problems with this:

    "By relying on statistical reconstruction of the last 1000 years, using only the temperature patterns of the last 140 years instead of actual temperature readings, the IPCC report and Summary missed both a major cooling period as well as a significant warming trend during that millennium."

    Vibjörn Karlén Professor Emeritus Physical Geography, Stockholm Univ.

    Similar quotes at source in comments.

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    • PegMiner6 months agoReport

      Hmm. Let's see. Who should I believe? Hmm? Do I believe actual scientists who say climate models are used? Or should I believe some yahoo like Climate Reject.

  • Anonymous
    6 months ago

    Zany Dog is talking sh*t.

    Clmate models are used for predictions, we know there is global warming because of past temperature records.

    • dull razor
      Lv 4
      6 months agoReport

      Who the hell are cyclops, yahoo joker, zaney dog, and all these nonexistent people? Who the hell are you people always talking about?

  • 6 months ago

    None the models are not very accurate and no matter what we humans won't be doing much to address the problem other than adapting to the coming changes. So they are irrelevant.

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