Communicating Republicans' Level of Support for Climate Policy Briefly Increases Personal Support in the United States

Americans systematically underestimate the popularity of climate policy. Researchers have speculated that correcting second-order misperceptions, or beliefs about what others believe, could translate into even broader support as action comes to be seen as more politically feasible. Using a two-wave experiment (N approximate to 1,600), we examine the effects of communicating the degree of policy support among Democrats, Republicans, or all Americans (i.e., norms). Republican and American norms increase perceived policy support from the relevant group; exposure to the Republican norm also increases policy support, and this effect is concentrated mostly among fellow Republicans. However, this effect does not persist over time.