Photo Credit: C-SPANThis essay is adapted from Chris Mooney’s forthcoming book, The Republican Brain: The Science of Why They Deny Science—and Reality, due out in April from Wiley.I can still remember when I first realized how naïve I was in thinking—hoping—that laying out the “facts” would suffice to change politicized minds, and especially Republican ones. It was a typically wonkish, liberal revelation: One based on statistics and data. Only this time, the data were showing, rather awkwardly, that people ignore data and evidence—and often, knowledge and education only make the problem worse.Someone had sent me a 2008 Pew report documenting the intense partisan divide in the U.S. over the reality of global warming.. It’s a divide that, maddeningly for scientists, has shown a paradoxical tendency to widen even as the basic facts about global warming have become more firmly established.Those facts are these: Humans, since the industrial revolution, have been burning more and more fossil fuels to power their societies, and this has led to a steady accumulation of greenhouse gases, and especially carbon dioxide, in the atmosphere. At this point, very simple physics takes over, and you are pretty much doomed, by what scientists refer to as the “radiative” properties of carbon dioxide molecules (which trap infrared heat radiation that would otherwise escape to space), to have a warming planet. Since about 1995, scientists have not only confirmed that this warming is taking place, but have also grown confident that it has, like the gun in a murder mystery, our fingerprint on it. Natural fluctuations, although they exist, can’t explain what we’re seeing. The only reasonable verdict is that humans did it, in the atmosphere, with their cars and their smokestacks.SNIP But it’s not just global warming where the “smart idiot” effect occurs. It also emerges on nonscientific but factually contested issues, like the claim that President Obama is a Muslim. Belief in this falsehood actually increased more among better-educated Republicans from 2009 to 2010 than it did among less-educated Republicans, according to research by George Washington University political scientist John Sides.The same effect has also been captured in relation to the myth that the healthcare reform bill empowered government “death panels.” According to research by Dartmouth political scientist Brendan Nyhan, Republicans who thought they knew more about the Obama healthcare plan were “paradoxically more likely to endorse the misperception than those who did not.” Well-informed Democrats were the opposite—quite certain there were no “death panels” in the bill.The Democrats also happened to be right, by the way.The idealistic, liberal, Enlightenment notion that knowledge will save us, or unite us, was even put to a scientific test last year—and it failed badly.Yale researcher Dan Kahan and his colleagues set out to study the relationship between political views, scientific knowledge or reasoning abilities, and opinions on contested scientific issues like global warming. In their study, more than 1,500 randomly selected Americans were asked about their political worldviews and their opinions about how dangerous global warming and nuclear power are. But that’s not all: They were also asked standard questions to determine their degree of scientific literacy (e.g, “Antibiotics kill viruses as well as bacteria—true or false?”) as well as their numeracy or capacity for mathematical reasoning (e.g., “If Person A’s chance of getting a disease is 1 in 100 in 10 years, and person B’s risk is double that of A, what is B’s risk?”).Full Article
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