NOTE: as of yesterday this Post is up at Climate Etc, the well known Lukewarmer blog of atmospheric scientist Judith Curry: http://judithcurry.com/2015/08/14/climate-culture-versus-knowing-disbelief/
(…and the embedded links pointing to referenced previous posts are set to the Climate Etc. version of these posts).
In a previous post at Climate Etc I showed two analyses on US public attitudes to climate change, based upon data from psychologist Dan Kahan’s studies plus some independent surveys. Both of these seek to explain what social / psychological mechanisms are driving the observed attitudes. The first analysis is Kahan’s own, which concludes that identity defense by adherents of particular political views / parties is the chief mechanism explaining the data, of which ‘knowing disbelief’ is the strongest form exhibited by those Conservatives / Republicans who are science aware. The second analysis, mine, demonstrates that the concept of a ‘climate culture’ provides a much better fit to the data, a culture that has adherents in its own right plus asymmetrical alliance with politics; also that Kahan’s conclusion is largely a product of his own bias due to a major influence from this same climate culture.
For some time before the above post was published (Jan 30th), I’d been looking out for a particular kind of survey that ought to provide significant evidence supporting either one or other of the above analyses. Unfortunately there seemed to be no such survey measuring the group I was interested in, so I had to run without this. However I noticed in June that a Gallup poll (G1) had appeared at the end of March, which while not ideal does measure a superset grouping in an appropriate enough manner to provide useful insight. This new poll data matches closely what the ‘climate culture’ hypothesis expects, and I believe it strongly challenges the ‘knowing disbelief’ hypothesis. While G1 covers respondents from the full US political spectrum, the most insightful data comes from the Independents. The next section is thus helpful context for understanding this data. (Note: for new readers wanting a short-cut, or prior readers wanting a refresher, there’s a compressed summary of Kahan’s theory versus mine in the ~700 word Appendix at pg4).
- A brief characterization of US Independents
In an interesting 2012 Washington Post article (WP1), journalist and political analyst Linda Killian says: ‘In hundreds of interviews with independent voters, I found that they tend to be well informed and care about the political process — even though the two parties have done their best to alienate them through attacks, gridlock and dysfunction.’ And later: ‘Sixty percent of independents say they are not aligned with a party because they agree with the Republicans on some things, such as the economy and national security, and with the Democrats on social issues.’
Another Gallup poll (G2) from 2013 claims that 42% of Americans identified as Independents, of which figure 16% percent generally lean towards the Democrats and also 16% lean towards the Republicans, so have partial predictability. This leaves 10% of ‘centrists’ whose allegiance is still less consistent and will always swing on particular issues. However, the WP1 article claims it is ‘a myth’ that most Independents are ‘leaners’, and that in fact about half are ‘truly independent’. A Pew pole quoted in a CNN article (C1) about Independents, approximately agrees with the figures in G2, yet whether it is a quarter or a half of Independents who are ‘leaners’, everyone seems to be agreed that Independents generally are much less partisan, and are driven away from the main parties in part by negative tribalism:
The CNN article C1 says: ‘The shift away from partisan affiliation has occurred during a sustained period of government distrust and distaste for partisan politics. In the last year, negative impressions of government have displaced the economy atop Gallup’s monthly measure of the nation’s most important problem.’ The article WP1 says: ‘Independents are more turned off than partisan voters by negative campaign ads and are more likely to say they want more substantive discussions from the candidates and the media. Independents take voting seriously but are less moved by partisan appeals.’ Poll G2 says: ‘The rise in political independence is likely an outgrowth of Americans’ record or near-record negative views of the two major U.S. parties, of Congress, and their low level of trust in government more generally.’
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