| Truly inconvenient truths about climate change being ignored Michael Duffy November 8, 2008 Last month I witnessed something shocking. Rajendra Pachauri, chairman of the Intergovernmental Panel on Climate Change, was giving a talk at the University of NSW. The talk was accompanied by a slide presentation, and the most important graph showed average global temperatures. For the past decade it represented temperatures climbing sharply. As this was shown on the screen, Pachauri told his large audience: "We're at a stage where warming is taking place at a much faster rate [than before]". Now, this is completely wrong. For most of the past seven years, those temperatures have actually been on a plateau. For the past year, there's been a sharp cooling. These are facts, not opinion: the major sources of these figures, such as the Hadley Centre in Britain, agree on what has happened, and you can check for yourself by going to their websites. Sure, interpretations of the significance of this halt in global warming vary greatly, but the facts are clear. So it's disturbing that Rajendra Pachauri's presentation was so erroneous, and would have misled everyone in the audience unaware of the real situation. This was particularly so because he was giving the talk on the occasion of receiving an honorary science degree from the university. Later that night, on ABC TV's Lateline program, Pachauri claimed that those who disagree with his own views on global warming are "flat-earthers" who deny "the overwhelming weight of scientific evidence". But what evidence could be more important than the temperature record, which Pachauri himself had fudged only a few hours earlier? In his talk, Pachauri said the number of global warming sceptics is shrinking, a curious claim he was unable to substantiate when questioned about it on Lateline. Still, there's no doubt a majority of climate scientists agree with the view of the IPCC. Today I want to look at why this might be so: after all, such a state of affairs presents a challenge to sceptics such as me. If we're right, then an awful lot of scientists are wrong. How could this be? This question was addressed in September in a paper by Professor Richard Lindzen, of the Program in Atmospheres, Oceans and Climate at Massachusetts Institute of Technology. Lindzen, probably the most qualified prominent global-warming sceptic, suggested that a number of changes in the way science is conducted have contributed to the rise of climate alarmism among American scientists. Central to this is the importance of government funding to science. Much of that funding since World War II has occurred because scientists build up public fears (examples include fear of the USSR's superiority in weapons or space travel, of health problems, of environmental degradation) and offer themselves as the solution to those fears. The administrators who work with the scientists join in with enthusiasm: much of their own funding is attached to the scientific grants. Lindzen says this state of affairs favours science involving fear, and also science that involves expensive activities such as computer modelling. He notes we have seen "the de-emphasis of theory because of its difficulty and small scale, the encouragement of simulation instead (with its call for large capital investment in computation), and the encouragement of large programs unconstrained by specific goals. "In brief, we have the new paradigm where simulation and [computer] programs have replaced theory and observation, where government largely determines the nature of scientific activity, and where the primary role of professional societies is the lobbying of the government for special advantage." Lindzen believes another problem with climate science is that in America and Europe it is heavily colonised by environmental activists. Here are just two examples that indicate the scale of the problem: the spokesman for the American Meteorological Society is a former staffer for Al Gore, and realclimate.org, probably the world's most authoritative alarmist web site, was started by a public relations firm serving environmental causes. None of this is necessarily sinister, but the next time you hear a scientist or scientific organisation warning of climate doom, you might want to follow the money trail. Sceptics are not the only ones who have received funding from sources sympathetic to their viewpoint. (And yes, Lindzen did once receive some money from energy companies.) Lindzen claims that scientific journals play an important role in promoting global warming alarmism, and gives a number of examples. Someone else who's looked closely at scientific journals (although not specifically those dealing with climate science) is epidemiologist John Ioannidis of the Tufts University School of Medicine in Boston. He reached the surprising conclusion that most published research findings are proved false within five years of their publication. (Lest he be dismissed as some eccentric, I note that the Economist recently said Ioannidis has made his case "quite convincingly".) Why might this be so? Later work by Ioannidis and colleagues suggests that these days journal editors are more likely to publish research that will make a splash than that which will not. They do this to sell more copies of their publications and of reprints of papers in it. Ioannidis believes these publication practices might be distorting science. It's possible the forces described by Lindzen and Ioannidis have imbued climate science with a preference for results that involve (or seem to involve) disastrous change rather than stability. Rajenda Pachauri's recent Sydney lecture suggests that in this relatively new field, inconvenient truths to the contrary are not welcome. [Read More] |
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