Governmental efficacy is a key psychological pathway to climate action
摘要
Addressing climate change requires sustained public engagement with mitigation efforts. Across two large quota-matched U.S. samples (Study 1: N = 1197; Study 2: N = 31,324), we identify response efficacy, the belief that actions will produce meaningful outcomes, as a central psychological driver of climate engagement. In Study 1, governmental response efficacy emerged as the strongest predictor of climate-related action across multiple domains, including political participation, public advocacy, financial contributions, and lifestyle change across partisans. In Study 2, we evaluated 17 theory-informed communication strategies and found that messages emphasizing the collective effectiveness and emotional benefits of climate action consistently enhanced personal, collective, and governmental efficacy across ideological groups. Together, these findings position governmental response efficacy as a key mechanism underlying public engagement with climate action and demonstrate scalable communication strategies for strengthening it.