Jonathan Kay, National Post · Friday, Jul. 16, 2010
Have you heard about the “growing number” of eminent scientists who reject the theory that man-made greenhouse gases are increasing the Earth’s temperature? It’s one of those factoids that, for years, has been casually dropped into the opening paragraphs of conservative manifestos against climate change treaties and legislation. A website maintained by the office of a U.S. Senator has for years instructed us that a “growing number of scientists” are becoming climate-change “skeptics.” This year, the chairman of the Australian Broadcasting Corporation gave a speech praising the “growing number of distinguished scientists [who are] challenging the conventional wisdom with alternative theories and peer reviewed research.” In this newspaper, a columnist recently described the “growing skepticism about the theory of man-made climate change.” Surely, the conventional wisdom is on the cusp of being overthrown entirely: Another colleague proclaimed that we are approaching “the church of global warming’s Galileo moment.”
Fine-sounding rhetoric — but all of it nonsense. In a new article published in the Proceedings of the Natural Academy of Sciences, a group of scholars from Stanford University, the University of Toronto and elsewhere provide a statistical breakdown of the opinions of the world’s most prominent climate experts. Their conclusion: The group that is skeptical of the evidence of man-made global warming “comprises only 2% of the top 50 climate researchers as ranked by expertise (number of climate publications), 3% of researchers in the top 100, and 2.5% of the top 200, excluding researchers present in both groups … This result closely agrees with expert surveys, indicating that [about] 97% of self-identified actively publishing climate scientists agree with the tenets of [man-made global warming].”
How has this tiny 2%-3% sliver of fringe opinion been reinvented as a perpetually “growing” share of the scientific community? Most climate-change deniers (or “skeptics,” or whatever term one prefers) tend to inhabit militantly right-wing blogs and other Internet echo chambers populated entirely by other deniers. In these electronic enclaves — where a smattering of citations to legitimate scientific authorities typically is larded up with heaps of add-on commentary from pundits, economists and YouTube jesters who haven’t any formal training in climate sciences — it becomes easy to swallow the fallacy that the whole world, including the respected scientific community, is jumping on the denier bandwagon.
Read more: http://www.nationalpost.com/opinion/columnists/science+Global+warming+deniers+liability+conservative+cause/3284292/story.html#ixzz0uLwqG4iO