Replication Data for: \"Increasing stated climate mitigation behaviors without increasing partisan belief in climate change\"

Partisan polarization has crystallized climate beliefs, and slowly changing beliefs is considered a prerequisite to motivating action. However, the narrowing window for climate mitigation demands urgent behavior change. Using preregistered survey experiments on solar panels (n = 9,298) and electric vehicles (n = 9,903), I find that messages from co-partisan elected officials increase stated mitigation behaviors among both Republicans and Democrats, even without increasing their belief in climate change. Thus, interventions seeking to slowly increase climate belief should instead seek to directly increase mitigation behaviors. Furthermore, messages about climate change also make Republicans more likely to adopt mitigation behaviors, challenging the scholarly consensus that discussing climate change triggers a \"backfire effect\" reducing Republicans' mitigation behaviors. Finally, I apply the theory of \"credibility-enhancing displays\" to politics for the first time. I find limited evidence that partisan elites become more effective at motivating mitigation behaviors when they themselves engage in those behaviors.

党派极化已使气候信念固化，而缓慢改变信念被视为推动行动的前提条件。然而，气候减缓的窗口期不断收窄，亟需行为层面的紧急转变。通过针对太阳能电池板（n=9298）和电动汽车（n=9903）开展的预注册调查实验，研究发现，来自同党派民选官员的信息可提升共和党人和民主党人的自述减缓行为，即便这并未增强他们对气候变化的信念。因此，旨在缓慢提升气候信念的干预措施应转而直接聚焦于增加减缓行为。此外，关于气候变化的信息也会提高共和党人采取减缓行为的可能性，这对“讨论气候变化会触发‘反效果’（backfire effect），从而降低共和党人减缓行为”这一学术共识构成挑战。最后，本研究首次将“可信度增强展示”（credibility-enhancing displays）理论应用于政治学领域。研究发现，关于党派精英自身践行减缓行为时能更有效地推动他人采取此类行为的证据较为有限。