Political polarization is a barrier to enacting policy solutions to global issues. Social psychology has a rich history of studying polarization, and there is an important opportunity to define and refine its contributions to the present political realities. We do so in the context of one of the most pressing modern issues: climate change. We synthesize the literature on political polarization and its applications to climate change, and we propose lines of further research and intervention design. We focus on polarization in the United States, examining other countries when literature was available. The polarization literature emphasizes two types of mechanisms of political polarization: (1) individual-level psychological processes related to political ideology and (2) group-level psychological processes related to partisan identification. Interventions that address group-level processes can be more effective than those that address individual-level processes. Accordingly, we emphasize the promise of interventions leveraging superordinate identities, correcting misperceived norms, and having trusted leaders communicate about climate change. Behavioral interventions like these that are grounded in scientific research are one of our most promising tools to achieve the behavioral wedge that we need to address climate change and to make progress on other policy issues.

中文翻译：

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政治极化的社会心理学视角：气候变化的见解和影响。

政治两极分化是制定全球问题政策解决方案的障碍。社会心理学在研究两极分化方面有着悠久的历史，现在有一个重要的机会来定义和完善其对当前政治现实的贡献。我们这样做的背景是最紧迫的现代问题之一：气候变化。我们综合了有关政治极化及其在气候变化中的应用的文献，并提出了进一步研究和干预设计的路线。我们关注美国的两极分化，并在有文献可用时研究其他国家。极化文献强调两种类型的政治极化机制：（1）与政治意识形态相关的个人层面的心理过程；（2）与党派认同相关的群体层面的心理过程。针对群体层面流程的干预措施可能比针对个人层面流程的干预措施更有效。因此，我们强调利用上级身份进行干预、纠正误解的规范以及让值得信赖的领导人就气候变化进行沟通的承诺。此类基于科学研究的行为干预措施是我们最有前途的工具之一，可以实现我们应对气候变化和在其他政策问题上取得进展所需的行为楔子。