Nick Maclaren wrote:
In article ,
michael adams wrote:


There are claims even among Global Warming supporting
meteorologists that the present European droughts and heatwaves
are merely features of a recurrent 60 yr(?) cycle. Because
ironically
global warming is expected to adversly affect the Gulf Stream
and make Western Europe more subject to cold air currents from
the Central Asian landmass to the East.

Oh, God, not cyclemania again :-( As with most other areas where
people have claimed to discover cycles (and the reason is not
obvious), there is damn-all evidence for them. Most of the time
the series is almost certainly an ARIMA model of sorts (think of
that as a correlated random walk).

I'll say this for it, though: pdq does mean "pretty damn quick".

--
Mike.