Janet Albrechtsen, who previously endorsed Lord Monckton’s conspiracy theory that the draft Copenhagen agreement were designed to bring in a world government has backed away, admitting that his rants about Hitler Youth and similar make it unsurprising that neither Kevin Rudd nor Tony Abbbott would see him during his Australian tour (I delayed in responding to my invitation, and it was pulled).
Albrechtsen has previously shown more willingness to admit error than the average pundit, and this piece counts in her favour. Still, it’s disappointing to see her continuing to suggest that the utterly unqualified and ludicrously wrong Viscount is “powerful” when he talks about the science. She quotes him confronting an activist, and asking
whether she is aware that there has been no statistically significant change in temperatures for 15 years. No, she is not. Whether she is aware that there has in fact been global cooling in the past nine years? No, she is not. Whether she is aware that there has been virtually no change to the amount of sea ice? No, she does not.
Perhaps the activist does not know these things because none of them are true, at least not in the sense that is implied. For example, as predicted by climate models, the dramatic reduction in Arctic sea ice has not not been mirrored in the Antarctic, so with a little ‘virtual’ fudge Monckton’s claim is, kind of, true. The point about statistical significance may be restated as saying that the variability of temperature about the upward trend is sufficiently great that 15 observations is not quite enough to reject the null hypothesis of no change with 95 per cent confidence (when I did stats, the standard number for a decent-sized sample was 30 observatons, but the trend in temperatures is strong enough that we don’t need so many). And the claim about global cooling is typical cherry picking, now out of date. 2009 was warmer than either 2000 or 2001, but Monckton was presumably using the relatively cool 2008 as his endpoint, or maybe the exceptionally warm El Nino year in 1998 as his starting point.
Albrechtsen is no more qualified than Monckton on these points. But she ought to ask herself whether it makes sense to rely on the statistical judgement of a former political advisor (to climate arch-conspirator Margaret Thatcher no less) whose political judgement is so obviously flaky.