From Al Fin
“The track record of any kind of long-distance prediction is really bad, but everyone’s still really interested in it. It’s sort of a way of picturing the future. But we can’t make long-term predictions of the economy, and we can’t make long-term predictions of the climate,” Dr. Orrell said in an interview. After all, he said, scientists cannot even write the equation of a cloud, let alone make a workable model of the climate.
Formerly of University College London, Dr. Orrell is best known among scientists for arguing that the failures of weather forecasting are not due to chaotic effects — as in the butterfly that causes the hurricane — but to errors of modelling. He sees the same problems in the predictions of the recent Intergovernmental Panel on Climate Change report, which he calls “extremely vague,” and says there is no scientific reason to think the climate is more predictable than the weather.
“Models will cheerfully boil away all the water in the oceans or cover the world in ice, even with pre-industrial levels of Co2,” he writes in Apollo’s Arrow . And so scientists use theoretical concepts like “flux adjustments” to make the models agree with reality. When models about the future climate are in agreement, “it says more about the self-regulating group psychology of the modelling community than it does about global warming and the economy.
Source.
Wassily Leontief, Nobel prize winner for modeling, said this about the limits of models. "We move from more or less plausible but really arbitrary assumptions, to elegantly demonstrated but irrelevant conclusions." Exactly. Assume continued warming as in the last three decades, and you get a warming disaster. Assume more episodes of global cooling, and you get a cooling disaster.
...the global warming movement has now become a multi-billion dollar enterprise with thousands of jobs and millions in funding for NGOs and think-tanks, top jobs and prizes for scientists, and huge media coverage for predictions of disaster.
The vested interests in the global warming theory are now as strong, rich and politically influential as the biggest multinationals.
Formerly of University College London, Dr. Orrell is best known among scientists for arguing that the failures of weather forecasting are not due to chaotic effects — as in the butterfly that causes the hurricane — but to errors of modelling. He sees the same problems in the predictions of the recent Intergovernmental Panel on Climate Change report, which he calls “extremely vague,” and says there is no scientific reason to think the climate is more predictable than the weather.
“Models will cheerfully boil away all the water in the oceans or cover the world in ice, even with pre-industrial levels of Co2,” he writes in Apollo’s Arrow . And so scientists use theoretical concepts like “flux adjustments” to make the models agree with reality. When models about the future climate are in agreement, “it says more about the self-regulating group psychology of the modelling community than it does about global warming and the economy.
Source.
Wassily Leontief, Nobel prize winner for modeling, said this about the limits of models. "We move from more or less plausible but really arbitrary assumptions, to elegantly demonstrated but irrelevant conclusions." Exactly. Assume continued warming as in the last three decades, and you get a warming disaster. Assume more episodes of global cooling, and you get a cooling disaster.
...the global warming movement has now become a multi-billion dollar enterprise with thousands of jobs and millions in funding for NGOs and think-tanks, top jobs and prizes for scientists, and huge media coverage for predictions of disaster.
The vested interests in the global warming theory are now as strong, rich and politically influential as the biggest multinationals.
1 comment:
I gave up on Time years ago. Just last week I found a letter in the mail with a free bookmark asking me to subscribe.
Thought this was an interesting article from USA Today recently. Seems all is not peace and love on the islands of Hawaii.
http://www.usatoday.com/news/nation/2007-03-06-hawaii-cover_N.htm?csp=34
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