Can Your Genes Predict Whether You’ll Be a Conservative or a Liberal?
Conscientiousness, which predicts conservative voting, moderately correlated with proximity to the equator. And Extraversion, which is associated with liberal voting, correlated strongly with greater distance away from the equator.
Temperature also mattered. Hotter climates correlated strongly with Conscientiousness. So even though a political spectrum runs through all populations, groups closer to the equator (and in hotter environments) have a more conservative average group disposition than groups living further away from the equator (and in cooler climes).