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Suddenly It’s Cool Again To Be A Sceptical Philosopher

Times Higher EducationIs belief in global-warming science another example of the “madness of crowds”? That strange but powerful social phenomenon, first described by Charles Mackay in 1841, turns a widely shared prejudice into an irresistible “authority”. Could it indeed represent the final triumph of irrationality?

After all, how rational is it to pass laws banning one kind of light bulb (and insisting on their replacement by ones filled with poisonous mercury vapour) in order to “save electricity”, while ploughing money into schemes to run cars on … electricity? How rational is it to pay the Russians once for fossil fuels, and a second time for permission (via carbon credits) to burn them (see box page 36)? And how rational is it to suppose that the effects of increased CO2 in the atmosphere take between 200 and 1,000 years to be felt, but that solutions can take effect almost instantaneously?

Whether rational or not, global warming theory has become a political orthodoxy. So entrenched is it that those showing any resistance to it are described as “heretics” or even likened to “Holocaust deniers”.

Paul Krugman, the Nobel prize-winning economist, professor of economics and international affairs at Princeton University and columnist for The New York Times, has said: “Is it fair to call climate denial a form of treason? Isn’t it politics as usual? Yes, it is – and that’s why it’s unforgivable … the deniers are choosing, wilfully, to ignore that threat, placing future generations of Americans in grave danger, simply because it’s in their political interest to pretend that there’s nothing to worry about. If that’s not betrayal, I don’t know what is.”

Another columnist, this time for The Boston Globe, has written: “I would like to say we’re at a point where global warming is impossible to deny. Global warming deniers are now on a par with Holocaust deniers, although one denies the past and the other denies the present and future.”

Such pronouncements from these commentators and from other people highly placed in government, international organisations, the press, academia and science make the debate seem closed and the conclusion beyond dispute. Yet the plain fact is that there is something deeply unscientific about the theory of global warming. Despite this, it has gained such widespread, uncritical acceptance that any scientist expressing a doubt often finds his or her actions tarred with accusations of the rankest political and personal motivations.

How this situation came about says much about how science is co-opted to sway public opinion. The case is built, deliberately or not, on misleading images and interpretations that have been perpetuated by parties with a vested interest. It morphs into a tool for governments to intimidate their populations into passive acceptance of very real changes: from the tiny, such as accepting miserable fluorescent light instead of the incandescent light we’ve been used to; to the major, like welcoming nuclear power plants and obliging rainforest tribes to make way for biofuel plantations.

Indeed, much of what is presented as hard scientific evidence for the theory of global warming is false. “Second-rate myth” may be a better term, as the philosopher Paul Feyerabend called science in his 1975 polemic, Against Method.

“This myth is a complex explanatory system that contains numerous auxiliary hypotheses designed to cover special cases, as it easily achieves a high degree of confirmation on the basis of observation,” Feyerabend writes. “It has been taught for a long time; its content is enforced by fear, prejudice and ignorance, as well as by a jealous and cruel priesthood. Its ideas penetrate the most common idiom, infect all modes of thinking and many decisions which mean a great deal in human life … “.

But call it what you will, as long as you don’t think that by calling it “science” it becomes irrefutable. Because that it ain’t.

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