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Sociopolitical values are an important driver of climate change beliefs, attitudes, and policy preferences. People with “individualist‐hierarchical” values favor individual freedom, competition, and clearly defined social hierarchies, while “communitarian‐egalitarians” value interdependence and equality across gender, age, heritage, and ethnicity. In the US, individualist‐hierarchs generally perceive less risk from climate change and express lower support for actions to mitigate it than communitarian‐egalitarians. Exposure to scientific information does little to change these views. Here, we ask if a widely used experiential simulation,World Climate,can help overcome these barriers.World Climatecombines an engaging role‐play with an interactive computer model of the climate system. We examine pre‐ and post‐World Climatesurvey responses from 2,080 participants in the US and use a general linear mixed model approach to analyze interactions among participants' sociopolitical values and gains in climate change knowledge, affect, and intent to take action. As expected, prior to the simulation, participants holding individualist‐hierarchical values had lower levels of climate change knowledge, felt less urgency, and expressed lower intent to act than those holding communitarian‐egalitarian values. However, individualist‐hierarchs made significantly larger gains across all constructs, particularly urgency, than communitarian‐egalitarians. Participants' sociopolitical values also shifted: those with individualistic‐hierarchical values before the simulation showed a substantial, statistically significant shift toward a communitarian‐egalitarian worldview. Simulation‐based experiences likeWorld Climatemay help reduce polarization and build consensus towards science‐based climate action.

Background. We describe and provide an initial evaluation of the Climate Action Simulation, a simulation-based role-playing game that enables participants to learn for themselves about the response of the climate-energy system to potential policies and actions. Participants gain an understanding of the scale and urgency of climate action, the impact of different policies and actions, and the dynamics and interactions of different policy choices.

Intervention. The Climate Action Simulation combines an interactive computer model, En-ROADS, with a role-play in which participants make decisions about energy and climate policy. They learn about the dynamics of the climate and energy systems as they discover how En-ROADS responds to their own climate-energy decisions.

Methods. We evaluated learning outcomes from the Climate Action Simulation using pre- and post-simulation surveys as well as a focus group.

Results. Analysis of survey results showed that the Climate Action Simulation increases participants’ knowledge about the scale of emissions reductions and policies and actions needed to address climate change. Their personal and emotional engagement with climate change also grew. Focus group participants were overwhelmingly positive about the Climate Action Simulation, saying it left them feeling empowered to make a positive difference in addressing the climate challenge.

Discussion and Conclusions. Initial evaluation results indicate that the Climate Action Simulation offers an engaging experience that delivers gains in knowledge about the climate and energy systems, while also opening affective and social learning pathways.