"A large and growing empirical literature is exploring what drives denial. Personality is a factor: people are more likely to deny climate change if they’re inclined toward hierarchy and against changes to the status quo. Demographic factors also show an effect. Internationally, people who are less educated, older and more religious tend to discount climate change, with sex and income having a smaller effect.
But the strongest predictor is one’s politics. An international synthesis of existing studies found that values, ideologies and political allegiances overshadowed other factors. In Western societies, political affiliation is the key factor, with conservative voters more likely to discount climate change. Globally, a person’s commitment to democratic values – or not in the case of deniers – is more significant.