Andy @Revkin Points To The End of The Line For The IPCC And Its Lot
Beginning in the 1980s, [University of Pennsylvania Professor Philip] Tetlock examined 27,451 forecasts by 284 academics, pundits and other prognosticators. The study was complex, but the conclusion can be summarized simply: the experts bombed. Not only were they worse than statistical models, they could barely eke out a tie with the proverbial dart-throwing chimps. […] The least accurate forecasters, [Tetlock] found, were hedgehogs: “thinkers who ‘know one big thing,’ aggressively extend the explanatory reach of that one big thing into new domains” and “display bristly impatience with those who ‘do not get it,’ ” he wrote. Better experts “look like foxes: thinkers who know many small things,” “are skeptical of grand schemes” and are “diffident about their own forecasting prowess.”
So there we have it…experts of the “big thing” called “climate change”, aggressive (to the point of hiding declines, preventing publication of competing ideas, inserting unsubstantiated critiques in the IPCC report, etc etc) and definitely “impatient” with us little humans wondering aloud about their certitudes (any post at RC, Connolley, Deltoid, Romm, etc etc keeps confirming this point).
Note how none of the above can be defined as “gross negligence” or “conspiracy”, and yet despite all the whitewashing by the Climategate inquiries, there is a scientific consensus, and the best of our scientific knowledge demonstrates, that all that bunch, and pretty much all the bigwigs around the IPCC, they ARE “least accurate forecasters”. QED.
For more discussion about “wrongology”: here and here. Read also here a critique-essay by Tetlock himself, listing a set of criteria suggested by David Freedman, author of Wrong: Why Experts* Keep Failing Us—And How to Know When Not to Trust Them as signs of claims we should be “especially wary of”
- dramatic (“claiming to have invented the psychological equivalent of the telescope qualifies”)
- a tad too clear-cut (“devoid of qualifications about when propositions do and do not hold”)
- doubt free (“portraying findings as beyond reasonable doubt and one’s measure as 100 percent pure”)
- universal (“implying that one is tapping into powerful unconscious forces that, hitherto unbeknownst to us, drive all human behavior”)
- palatable (“likely to appeal to one’s favorite ideological constituencies”)
- receiving “a lot of positive” media attention (“widely covered in the mass media and millions have visited the website”)
- actionable implications (“claims about what employers now need to do to guarantee true equality of opportunity in workplaces”)
Let me now make a statement that is dramatic, very clear-cut, doubt-free, universal, palatable (to most of my readers), yet likely media-ignored and hardly actionable: the “scientific consensus” on climate-change (rather, the unscientific stuff that constitutes the IPCC–led propaganda bandied about as “scientific consensus”), scores 7 out of 7 on the Freedman scale and therefore should lie at the bottom of anybody’s trust level:
- dramatic (having reached the computational power needed to project future climate just as CO2 emissions got to a previously-unknown “dangerous” level)
- a tad too clear-cut (with climate change almost completely due to a “thermostat” called CO2)
- doubt free (the IAC spent an inordinate amount of time complaining about the absurd IPCC policy of underplaying uncertainties)
- universal (everybody will feel the (bad) consequences of climate change, and everybody is guilty of it)
- palatable (as it happens, the usual evils of capitalism and freedoms are the underling cause of climate change)
- receiving “a lot of positive” media attention (shall I really comment this?)
- actionable implications (every ha’penny worth of a politician understands how many things can be pinned upon the bandwagon called “climate change”)
And I find one sentence by Tetlock as especially relevant to the climate debate:
Whatever may be the merits of the underlying science in the peer-reviewed literature, in the public forum, the ratio of pseudoexpertise to genuine expertise is distressingly high.
ps Yes, I might be wrong. On the other hand, I am not asking for billions of dollars for dubious research, have never attempted to restrict anybody’s liberty, don’t use the ‘net to show off my superiority complex, do let almost every comment free on this website, etc etc)