Credibiltiy and global warming

The assertion that the glaciers in the Himalayan Mountains were rapidly melting was made for political reasons. Those writing the influential UN report knew it had no basis

Dr Murari Lal also said he was well aware the statement, in the 2007 report by the Intergovernmental Panel on Climate Change (IPCC), did not rest on peer-reviewed scientific research.
In an interview with The Mail on Sunday, Dr Lal, the co-ordinating lead author of the report’s chapter on Asia, said: ‘It related to several countries in this region and their water sources. We thought that if we can highlight it, it will impact policy-makers and politicians and encourage them to take some concrete action.
....
The claim that Himalayan glaciers are set to disappear by 2035 rests on two 1999 magazine interviews with glaciologist Syed Hasnain, which were then recycled without any further investigation in a 2005 report by the environmental campaign group WWF.
It was this report that Dr Lal and his team cited as their source.
The WWF article also contained a basic error in its arithmetic. A claim that one glacier was retreating at the alarming rate of 134 metres a year should in fact have said 23 metres – the authors had divided the total loss measured over 121 years by 21, not 121.
Last Friday, the WWF website posted a humiliating statement recognising the claim as ‘unsound’, and saying it ‘regrets any confusion caused’.

Why does Glaciergate matter?

To understand why the future of Himalayan glaciers should arouse such peculiar passion, one must recall why they have long been a central icon in global warming campaigners' propaganda. Everything that polar bears have been to the West, the ice of the Himalayas has been – and more – to the East. This is because, as Mr Gore emphasised in his Oscar-winning film An Inconvenient Truth, the vast Himalayan ice sheet feeds seven of the world's major river systems, thus helping to provide water to 40 per cent of the world's population.

Credibility is a terrible thing to lose, and the climate warming folks are rapidly losing it.

The American media seems to slow on this story. It is getting much more in Britain and, of course, India.

Wikipedia on climate change

Lawrence Solomon has an interesting article on the climate change administrator for Wikipedia, who made sure that the Wikipedia articles on the topic had the proper viewpoint.

All told, Connolley created or rewrote 5,428 unique Wikipedia articles. His control over Wikipedia was greater still, however, through the role he obtained at Wikipedia as a website administrator, which allowed him to act with virtual impunity. When Connolley didn’t like the subject of a certain article, he removed it — more than 500 articles of various descriptions disappeared at his hand. When he disapproved of the arguments that others were making, he often had them barred — over 2,000 Wikipedia contributors who ran afoul of him found themselves blocked from making further contributions. Acolytes whose writing conformed to Connolley’s global warming views, in contrast, were rewarded with Wikipedia’s blessings. In these ways, Connolley turned Wikipedia into the missionary wing of the global warming movement.

The comments are interesting, and there is also a long discussion in the comments climateaudit. Here is the bottom line:

Whilst Wikipedia is pretty good on non politically contaminated issues such as mathematics it is a largely useless s minefield when it comes to highly contentious issues.

Feedback and climate change

My guess is that few people realize how important the concept of feedback is to climate change. A recent article in the Wall Street Journal explains its importance:

It is generally accepted that a doubling of CO2 will only produce a change of about two degrees Fahrenheit if all else is held constant. This is unlikely to be much to worry about.
Yet current climate models predict much higher sensitivities. They do so because in these models, the main greenhouse substances (water vapor and clouds) act to amplify anything that CO2 does. This is referred to as positive feedback. But as the IPCC notes, clouds continue to be a source of major uncertainty in current models. Since clouds and water vapor are intimately related, the IPCC claim that they are more confident about water vapor is quite implausible.
There is some evidence of a positive feedback effect for water vapor in cloud-free regions, but a major part of any water-vapor feedback would have to acknowledge that cloud-free areas are always changing, and this remains an unknown. At this point, few scientists would argue that the science is settled. In particular, the question remains as to whether water vapor and clouds have positive or negative feedbacks.
The notion that the earth's climate is dominated by positive feedbacks is intuitively implausible, and the history of the earth's climate offers some guidance on this matter. About 2.5 billion years ago, the sun was 20%-30% less bright than now (compare this with the 2% perturbation that a doubling of CO2 would produce), and yet the evidence is that the oceans were unfrozen at the time, and that temperatures might not have been very different from today's. Carl Sagan in the 1970s referred to this as the "Early Faint Sun Paradox."
For more than 30 years there have been attempts to resolve the paradox with greenhouse gases. Some have suggested CO2—but the amount needed was thousands of times greater than present levels and incompatible with geological evidence. Methane also proved unlikely. It turns out that increased thin cirrus cloud coverage in the tropics readily resolves the paradox—but only if the clouds constitute a negative feedback. In present terms this means that they would diminish rather than enhance the impact of CO2.

If the EPA can regulate carbon dioxide because of the greenhouse effect, could it also regulate water vapor?