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Stephen Wilde says:
The expansion of the polar air masses whilst the sun reduced its activity levels after the peak of cycle 23 resulted in a relaxation of the westerly air flow around Antarctica which had previously been skimming ice away from the edges especially on the Antarctic Peninsula which projects out into those winds.
Zonal jetstreams show an enhanced and tighter such air flow around Antarctica and zonal jets are associated with high levels of solar activity on multidecadal and centennial timescales.
This report is further evidence that a climate regime change occurred around 2000 which was when I first noted that the poleward drift of the jets and the permanent climate zones had apparently ceased.
Since 2000 the jets and climate zones have begun an equatorward drift and in due course the effect on ocean heat content will become incontrovertible (unless the sun perks up again).
Such findings must piss Al Gore off.
Thanks Ernest.