August 31, 2008

Global warming Cooling - the IPCC's accuracy

From the UK Telegraph:
The 'consensus' on climate change is a catastrophe in itself
As the estimated cost of measures proposed by politicians to "combat global warming" soars ever higher – such as the International Energy Council's $45 trillion – "fighting climate change" has become the single most expensive item on the world's political agenda.

As Senators Obama and McCain vie with the leaders of the European Union to promise 50, 60, even 80 per cent cuts in "carbon emissions", it is clear that to realise even half their imaginary targets would necessitate a dramatic change in how we all live, and a drastic reduction in living standards.

All this makes it rather important to know just why our politicians have come to believe that global warming is the most serious challenge confronting mankind, and just how reliable is the evidence for the theory on which their policies are based.

By far the most influential player in putting climate change at the top of the global agenda has been the UN's Intergovernmental Panel on Climate Chan ge (IPCC), set up in 1988, not least on the initiative of the Thatcher government. (This was why the first chairman of its scientific working group was Sir John Houghton, then the head of the UK's Meteorological Office.)
A bit more:
The common view of the IPCC is that it consists of 2,500 of the world's leading scientists who, after carefully weighing all the evidence, have arrived at a "consensus" that world temperatures are rising disastrously, and that the only plausible cause has been rising levels of CO2 and other man-made greenhouse gases.

In fact, as has become ever more apparent over the past 20 years –not least thanks to the evidence of a succession of scientists who have participated in the IPCC itself – the reality of this curious body could scarcely be more different.

It is not so much a scientific as a political organisation. Its brief has never been to look dispassionately at all the evidence for man-made global warming: it has always taken this as an accepted fact.

Indeed only a comparatively small part of its reports are concerned with the science of climate change at all. The greater part must start by accepting the official line, and are concerned only with assessing the impact of warming and what should be done about it.
And more:
The idea that the IPCC represents any kind of genuine scientific "consensus" is a complete fiction.

Again and again there have been examples of how evidence has been manipulated to promote the official line, the most glaring instance being the notorious "hockey stick".

Initially the advocates of global warming had one huge problem. Evidence from all over the world indicated that the earth was hotter 1,000 years ago than it is today.
And more:
By the time of its latest report, last year, the IPCC had an even greater problem. Far from continuing to rise in line with rising CO2, as its computer models predicted they should, global temperatures since the abnormally hot year of 1998 had flattened out at a lower level and were even falling – a trend confirmed by Nasa's satellite readings over the past 18 months.

So pronounced has this been that even scientists supporting the warmist thesis now concede that, due to changes in ocean currents, we can expect a decade or more of "cooling", before the "underlying warming trend" reappears.

The point is that none of this was predicted by the computer models on which the IPCC relies.
For a good read, go here and download the PDF of Prejudiced Authors, Prejudiced Findings Posted by DaveH at August 31, 2008 7:42 PM | TrackBack