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What you believe about climate change doesn’t reflect what you know,” said Dan Kahan, a professor at Yale Law School who studies risk perception. “It expresses who you are."
To illustrate this point, Kahan cited the results of yet another survey by the Pew Research Center. This survey was designed to test basic scientific knowledge and it posed questions like “What is the main function of red blood cells?” When respondents were asked what gas “most scientists believe causes temperatures in the atmosphere to rise,” 58 percent chose the correct answer: “carbon dioxide.” There was little difference in the proportion of Democrats and Republicans who gave the right response; among the former it was 56 percent, among the latter 58 percent. (Among Independents, 63 percent chose correctly.)
But polls that ask Americans about their own beliefs about global warming show a significant partisan divide; in another Pew survey, 66 percent of Democrats said they believed that human activity was the “main cause” of global warming, while only 24 percent of Republicans did. This suggests there are many Democrats who don’t know what’s causing climate change but still believe humans are responsible for it and many Republicans who do know, yet still deny that humans play a role. And what this shows, according to Kahan, is that people’s views on climate change are shaped less by their knowledge of the science than by their sense of group identity. To break the political logjam, he argues, Americans need to find ways of talking about climate change that don’t require members of one group or the other to renounce their cultural identity.
“If you show people there is some way of responding to the problem that’s consistent with who they are, then they’re more likely to see the problem,” Kahan told me.
Kari Marie Norgaard is a sociologist at the University of Oregon who has studied how people talk about climate change. She, too, believes there’s a strong cultural component to Americans’ attitudes, but she sees the problem as reflecting the strategies people use to avoid painful subjects.
Norgaard argues that it’s difficult even for people who are privately worried about climate change to discuss the issue in public because on the one hand they feel guilty about the situation and on the other they feel helpless to change it. “We have a need to think of ourselves as good people,” she told me. Meanwhile, the very lack of discussion about the issue feeds itself: people feel that if it really were a serious problem, others would be dealing with it: “It’s difficult for people to feel that climate change is really happening in part because we’re embedded in a world where no one else around us is talking about it.”
“It becomes a vicious cycle between the political gridlock and the cultural and individual gridlock,” Norgaard went on.
What could possibly break this cycle? Norgaard argues that if the nation’s political leaders would candidly discuss the issue “it could be very powerful. It could free up a lot of the hopelessness people feel and allow them to mobilize.”
“I think there are probably multiple levels at which we could break this cycle,” she went on. And though, after more than thirty years of ignored warnings, the challenge has grown all the more daunting, she said, “I don’t believe we get to give up.
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Elizabeth Kolbert (Field Notes from a Catastrophe: Man, Nature, and Climate Change)