“The most dramatic evidence, however, emerged last week with an announcement by Nasa's Jet Propulsion Laboratory that an immense slow-cycling movement of water in the Pacific, known as the Pacific Decadal Oscillation (PDO), had unexpectedly shifted into its cool phase, something which only happens every 30 years or so, ultimately affecting climate all over the globe.
Discussion of this on the invaluable Watts Up With That <http://wattsupwiththat.wordpress.com/> website, run by the US meteorologist Anthony Watts, shows how the alternations of the PDO between warm and cool coincided with each of the major temperature shifts of the 20th century - warming after 1905, cooling after 1946, warming again after 1977 - and how the new shift to a cool phase could have repercussions for decades to come.
It is notable that the German computer predictions published last week by Nature forecast a decade of cooling due to deep-ocean movements in the Atlantic, without taking account of how this may now be reinforced by a similar, even greater movement in the Pacific.
Mr Watts points out that the West coast of the USA might already be experiencing these effects in the recent freezing temperatures that have devastated orchards and vineyards in California, prompting an appeal for disaster relief for growers who fear they may have lost this year's crops.
Mr Watts's readers are amused by the explanation from one warmist apologist that "these natural climate phenomena can sometimes hide global warming caused by human activities - or they can have the opposite effect of accentuating it".
It is striking, in view of the colossal implications of the current response to "the greatest challenge confronting mankind" - as our politicians love to call it - how this hugely important debate is almost entirely overlooked by the media, and is instead conducted largely on the internet, through expert websites such as those run by Mr McIntyre and Mr Watts.
On one hand our politicians are committing us to spending unimaginable sums on wind farms, emissions trading schemes, absurdly ambitious biofuel targets, and every kind of tax and regulation designed to reduce our "carbon footprint" - all based on blindly accepting the predictions of computer models that the planet is overheating due to our output of greenhouse gases.
On the other hand, a growing number of scientists are producing ever more evidence to show how those computer models are based on wholly inadequate data and assumptions - as is being confirmed by the behaviour of nature itself (not least the continuing non-arrival of sunspot cycle 24).
The fact is that what has been happening to the world's climate in recent years, since global temperatures ceased to rise after 1998, was not predicted by any of those officially-sponsored models. The discrepancy between their predictions and observable data becomes more glaring with every month that passes.”
I don’t know why I even bother posting this stuff … its become so trivially obvious that global warming alarmism is totally unfounded and lacks any truly scientific basis. Apparently there is a large time lag between this obviousness and the understanding of our society’s elites in politics and the media: maybe in 5 or 6 years we’ll start hearing the media talking heads mentioning our current cooling phase and the substantial body of literature questioning the current greenhouse-warming-is-everything orthodoxy.