Apologies for the length of this post, but considering the scientific consensus that exists on climate change as described by the National Academy of Sciences, it might be beneficial to consider how our debate on this issue reflects the greater challenge we face as a nation.
The following was taken from an article entitled Cultural Cognition and Scientific Consensus by Nancy Huynh. I trust that it is acceptable to inject edited excerpts of it here with emphasis added:
For years, the U.S. National Academy of Sciences (NAS) has released expert
consensus reports confirming the reality of global warming. However, intense
debate still persists over this and other issues scientifically proven and reported
by the NAS. The arguments do not revolve around criticizing scientists and their
evidence, so the main problem is not actually a lack of faith in the scientic method.
Rather, people on both sides of these debates believe that the science supports
their side. This phenomenon may be due to “cultural cognition,” and Yale researchers
at the Cultural Cognition Project (CCP) have been studying cultural cognition in a
variety of topics, ranging from nanotechnology to gay and lesbian parenting to
adjudicatory fact-findings. They aim to improve our understanding of how cultural
values influence the perception of risk and the potent effect that this phenomenon
can have on public policy.
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*The cultural cognition theory postulates that people’s perceptions of risk reflect and reinforce the combinations of values defined by the intersection of two “worldview” dimensions. For example, hierarchical-individualists might be skeptical of environmental risk and have fewer qualms about nuclear power. They value markets and commerce and oppose restricting these activities. (Conservatives; R; Tea Party; inserted) On the other hand, egalitarian-communitarians are ambivalent about markets and commerce, which they blame for social inequity, so they are more likely to accept claims of environmental risk. (Liberals; D; Occupy WS; inserted). The CCP identified two main psychological processes that create cultural polarization over scientific information. *
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The first is culturally biased information searching: people prefer to look for scientific information that supports, rather than opposes, their cultural predispositions. The second mechanism is culturally biased assimilation. When considering information from any source, people selectively credit or discredit in accordance with their cultural predispositions, becoming more polarized as they learn more. Ideally, people would evaluate all sorts of new information and update their beliefs appropriately. Under these circumstances, the increased dissemination of sound information would lead to consensus on the best available scientific evidence. However, because of cultural cognition, this does not actually happen. Instead, people with opposing values start with opposing beliefs about controversial issues. They search for and interpret information in biased, opposing patterns, ultimately resulting in persistent polarization on risk issues.
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*We have already heavily invested in science research, so it only makes sense to invest in effective methods of communicating it. Scientific discoveries are ignored if people are polarized by their presentation. Given our understanding of cultural cognition, we need to work towards creating an environment in which people will not simply cling to their biases, but reach a consensus based on strong scientific evidence. *
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The intensity of our discussions on this culture-war issue is the worst news of all, because when you challenge a person’s position on an issue core to his or her identity, facts and arguments are seen as little more than further attacks. Changing this dynamic and finding ways to break the logjam currently affecting this and other issues may well be the greatest challenge of our time.