A trust inoculation to protect public support of governmentally mandated actions to mitigate climate change

Negative persuasive attacks and misinformation are major threats to public support of governmental mandates. Here, we introduce and investigate the treatment heterogeneity of the trust inoculation, first of a new kind of sociopsychological inoculation designed around the social dimensions of persuasion to protect against negative persuasive attacks and misinformation. In two preregistered studies, we provide evidence that inoculating citizens about the trustworthiness of key energy stakeholders moderately protected citizens’ support for a renewable energy part of national energy transitions to net-zero emissions, against multiple negative persuasive attacks, in Switzerland (N=389) and in seven European countries (N=2805). Baseline trust in energy stakeholders did not moderate the effects, but the trust inoculation protected the citizens most susceptible to negative persuasive attacks. Our findings demonstrate that sociopsychological inoculations such as the trust inoculation are promising, easily implementable and scalable interventions to protect governmental mandates from multiple negative persuasive attacks and misinformation.

In a world barreling down into a worsening climate crisis, negative persuasive attacks to necessary climate policies are major threats to the public’s support of governmental mandates to mitigate climate change. To protect against such attacks, here we introduce and investigate the effect and the treatment heterogeneity of the trust inoculation, a psychological inoculation strategy designed around the influence of trust as a key social dimension of persuasion. Across three preregistered studies, in one Swiss state (N = 389), in seven European countries (N = 2805), and in the United States (N = 3586), and in a mega-analysis (N = 6697), we provide evidence that inoculating citizens with the trustworthiness of key energy stakeholders protects citizens’ support for renewable energy against multiple negative persuasive attacks (δ = 0.16). Whereas baseline trust in key energy stakeholders did not moderate the effects, the trust inoculation selectively protected the citizens most susceptible to negative persuasive attacks, i.e., participants with high biospheric values. Study 3 showed that the trust inoculation, rather than a simple trust message, is responsible for the protection from incoming persuasive attacks. Our findings demonstrate that socioaffective psychological inoculations such as the trust inoculation are promising, easily implementable, and scalable umbrella strategies to protect governmental mandates against multiple negative persuasive attacks.

In a world barreling down into a worsening climate crisis, negative persuasive attacks to necessary climate policies are major threats to the public’s support of governmental mandates to mitigate climate change. To protect against such attacks, here we introduce and investigate the effect and the treatment heterogeneity of the trust inoculation, a psychological inoculation strategy designed around the influence of trust as a key social dimension of persuasion. Across three preregistered studies, in one Swiss state (N = 389), in seven European countries (N = 2805), and in the United States (N = 3586), and in a mega-analysis (N = 6697), we provide evidence that inoculating citizens with the trustworthiness of key energy stakeholders protects citizens’ support for renewable energy against multiple negative persuasive attacks (δ = 0.16). Whereas baseline trust in key energy stakeholders did not moderate the effects, the trust inoculation selectively protected the citizens most susceptible to negative persuasive attacks, i.e., participants with high biospheric values. Study 3 showed that the trust inoculation, rather than a simple trust message, is responsible for the protection from incoming persuasive attacks. Our findings demonstrate that socioaffective psychological inoculations such as the trust inoculation are promising, easily implementable, and scalable umbrella strategies to protect governmental mandates against multiple negative persuasive attacks.