There is a conference about climate change going on in Trono these days. It is filled with people who have lots of rhetoric and considerable disdain for the scientific process. Matt Ridley explains why. His article is quite lengthy, but it is worth taking some time to read it.
[I]nch by inch, the huge green pressure groups have grown fat on a diet of constant but ever-changing alarm about the future. That these alarms—over population growth, pesticides, rain forests, acid rain, ozone holes, sperm counts, genetically modified crops—have often proved wildly exaggerated does not matter: the organisations that did the most exaggeration trousered the most money. In the case of climate, the alarm is always in the distant future, so can never be debunked.
These huge green multinationals, with budgets in the hundreds of millions of dollars, have now systematically infiltrated science, as well as industry and media, with the result that many high-profile climate scientists and the journalists who cover them have become one-sided cheerleaders for alarm, while a hit squad of increasingly vicious bloggers polices the debate to ensure that anybody who steps out of line is punished. They insist on stamping out all mention of the heresy that climate change might not be lethally dangerous.
Today’s climate science...is based on a “pre-ordained conclusion, huge bodies of evidence are ignored and analytical procedures are treated as evidence”. Funds are not available to investigate alternative theories. Those who express even the mildest doubts about dangerous climate change are ostracised, accused of being in the pay of fossil-fuel interests or starved of funds; those who take money from green pressure groups and make wildly exaggerated statements are showered with rewards and treated by the media as neutral.
Ridley goes on to provide numerous examples to support these assertions. He labels himself not as a denier and not as a skeptic; rather he refers to himself as a "lukewarmer", a label that probably suits Bjorn Lomborg as well:
This is the “lukewarmer” school, and I am happy to put myself in this category. Lukewarmers do not think dangerous climate change is impossible; but they think it is unlikely.
He continues,
Barack Obama says that 97 per cent of scientists agree that climate change is “real, man-made and dangerous”. That’s just a lie (or a very ignorant remark): as I point out above, there is no consensus that it’s dangerous.
So where’s the outrage from scientists at this presidential distortion? It’s worse than that, actually. The 97 per cent figure is derived from two pieces of pseudoscience that would have embarrassed a homeopath. The first was a poll that found that 97 per cent of just seventy-nine scientists thought climate change was man-made—not that it was dangerous. A more recent poll of 1854 members of the American Meteorological Society found the true number is 52 per cent.
The second source of the 97 per cent number was a survey of scientific papers, which has now been comprehensively demolished by Professor Richard Tol of Sussex University, who is probably the world’s leading climate economist. As the Australian blogger Joanne Nova summarised Tol’s findings, John Cook of the University of Queensland and his team used an unrepresentative sample, left out much useful data, used biased observers who disagreed with the authors of the papers they were classifying nearly two-thirds of the time, and collected and analysed the data in such a way as to allow the authors to adjust their preliminary conclusions as they went along, a scientific no-no if ever there was one. The data could not be replicated, and Cook himself threatened legal action to hide them. Yet neither the journal nor the university where Cook works has retracted the paper, and the scientific establishment refuses to stop citing it, let alone blow the whistle on it. Its conclusion is too useful.
He concludes,
None of this would matter if it was just scientific inquiry, though that rarely comes cheap in itself. The big difference is that these scientists who insist that we take their word for it, and who get cross if we don’t, are also asking us to make huge, expensive and risky changes to the world economy and to people’s livelihoods. They want us to spend a fortune getting emissions down as soon as possible. And they want us to do that even if it hurts poor people today, because, they say, their grandchildren (who, as Nigel Lawson points out, in The Facts, and their models assume, are going to be very wealthy) matter more.
Yet they are not prepared to debate the science behind their concern. That seems wrong to me.
As I said at the outset, Ridley's article is quite lengthy. The above quotes represent no more than about 5% of it. I've left out his examples, his more detailed arguments, and his references.
If you uncritically accept the pronouncements from the politicians at the Climate Conference in Trono, please, PLEASE read Ridley's piece. Even if you don't like it, even if you think he omits important information, even if you have a different set of subjective estimates of the probabilities he discusses, what he says in the article merits your attention.