6 thoughts on “Freeman Dyson on Climate Models and AGW”

  1. Yes. I think of him as more reliable than those who try to silence deniers. Smog in big cities from auto exhausts and other fossil fuel burning sources is one thing, the outcries about CO2 is completely different.

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  2. Dyson is a smart, sensible guy who has been interested in the climate change thing before it was cool. His first published paper on the subject (of which I’m aware) dates from 1977. His critiques of climate models is right on target.

    The following graph, from a paper published in Nature Climate Change (2013) illustrates the divergence between the models and the observations. The red crosshatched region represents the observations, while the gray bars are the model predictions. Many models are included (117 simulations), which is why their results are represented in a histogram. Models with such a poor record deserve neither our respect nor even our attention. Yet they are the entire basis of climate alarmism.

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  3. From the article cited in the OP:

    “It’s certainly true that carbon dioxide is good for vegetation,” Dyson said. “About 15 percent of agricultural yields are due to CO-2 we put in the atmosphere. From that point of view, it’s a real plus to burn coal and oil.”

    Dyson is right about this, as discussed in this post (albeit not without controversy in the comments).

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  4. I was totes on board till the last quotation.  Science aside, I think it’s religion that can always change:  all the high priests have to do is say they’ve had a new  revelation.

    no question CO2 is plant food.

    My only hope,  and it’s a slim one,  is that all our means of keeping warm won’t be destroyed by the warmist-alarmists before the next volcanic winter. Cuz it’s comin’….

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  5. Hypatia:
    My only hope, and it’s a slim one, is that all our means of keeping warm won’t be destroyed by the warmist-alarmists before the next volcanic winter. Cuz it’s comin’….

    Some folks think we’re due for an ice age. This idea was especially popular in the 1970s, just before we were told that there would be runaway warming. The danger of an ice age is far more serious, given the geological record. Interglacials (warm periods such as the one we’re experiencing now) are the exceptions, not the rule. An ice sheet covering much of the Midwest, including Chicago, is a lot more alarming than the warming scenarios. I’d post a link to a map showing the maximum ice extent but I’ve already been beat about the head and shoulders for linking to an allegedly deceptive map so I’ll pass this time.

    Edit: Oh, what the heck. This is the year of living dangerously.

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  6. I think Dyson should sue the other Dyson on TV for name defamation.

    This Dyson is always interesting to listen to or read.

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