With this information, I examine global
climate model predictions of future climate to see whether the models change in what seem to be realistic ways.
A warning to the skeptics — there are very obvious trends for most of the parameters, which accord with
climate model predictions for a hotter drier future.
And one more thing that really bothers me
about climate model predictions that is rarely discussed around here, and kind of swept into the closet, which is prediction skill.
«At present, these effects are not generally accounted for
in climate model prediction studies,» study co-author J. T. Kiehl of NCAR notes.
There are examples where it is — for instance in the response to Pinatubo (for which
validated climate model predictions were made ahead of time — Hansen et al 1992)-- but this is not in general going to be true.
He said that if he had to rely on the European Space Agency's limited, difficult - to - access data for his work
checking climate model predictions against reality, he'd be «more or less blind» — particularly in the vast, uninhabited stretches of the globe like the Pacific, which are vital for understanding the world climate.
Those patterns matched three rather
dire climate model predictions: that storm tracks — the paths along which cyclones travel in the Northern and Southern hemispheres — would shift poleward; that subtropical dry regions would expand, and that the tops of the highest clouds would get even higher.
This is quite subtle though — weather forecast models obviously do better if they have initial conditions that are closer to the observations, and one might argue that for
particular climate model predictions that are strongly dependent on the base climatology (such as for Arctic sea ice) tuning to the climatology will be worthwhile.
Note that at the time, there had not been any observational estimate of that change (the first was in 2000 (Levitus et al, 2000)-RRB-, giving yet another example of a
successful climate model prediction.
In contrast to the
sophisticated climate model predictions of runaway («tipping point») global warming, in reality, real - world global warming, as measured by satellites, has disappeared for over 16 years despite the gargantuan increases in CO2 emissions... (Ramez Naam denies this)
The simple, indisputable, scientific summary after 35 years of empirical evidence: The tropical, runaway hotspot did not happen in spite of massive amounts of CO2 emissions released into the atmosphere; ergo, the IPCC was wrong, again; the billion -
dollar climate model predictions were wrong, again; alarmist, agenda - driven scientists» claims of climate doomsday were wrong, again; and, the fanatical anti-CO2 green lobby was wrong, as always.
The Intergovernmental Panel on Climate Change (IPCC) are 90 percent certain, but they examine only human causes of climate change and produce consistently
incorrect climate model predictions.
New climate research determined that the
IPCC climate models prediction of an imminent huge sea level rise, thus flooding coastal regions and producing 50 million climate refugees, was drastically wrong - instead, the current sea level trend is a measly 6 - 9 inches per century... (Ramez Naam denies this)
There are examples where it is — for instance in the response to Pinatubo (for which
validated climate model predictions were made ahead of time — Hansen et al 1992)-- but this is not in general going to be true.