Identity can improve our understanding of personal climate action, particularly when climate action becomes an expression of a person’s self. However, it is unclear which kind of self or identity is most relevant. Building on a comprehensive series of eight meta-analyses (using data from 188 published articles, N = 414,282 participants) this research systematically compares how strongly climate-friendly intentions and behaviors are associated with place identity, personal connectedness to nature, environmental self-identity (i.e., personal self-definition as a pro-environmentally acting person), and social identity (i.e., identification with social groups). Results suggest robust, medium-sized to strong links of both pro-environmental intentions and behaviors to people’s nature connectedness (r = 0.44/0.52), environmental self-identity (r = 0.62/0.56), and identification with groups considered to support climate-friendly behavior (r = 0.48/0.51), but markedly weaker effects for identification with groups which are unrelated to environmental topics (r = 0.30/0.15) and for place identity (r = 0.18/0.32). Implications for policy interventions and psychological theory are discussed.

身份可以提高我们对个人气候行动的理解，特别是当气候行动成为一个人自我的表达时。然而，目前尚不清楚哪种自我或身份最相关。基于八项综合分析的综合系列（使用来自 188 篇已发表文章的数据，N  = 414,282 名参与者），该研究系统地比较了气候友好型意图和行为与地方身份、个人与自然的联系、环境自我身份的关联程度（即个人自我定义为环保人士）和社会身份（即与社会群体的认同）。结果表明，亲环境意图和行为与人们的自然联系之间存在稳健的、中等至强的联系（r = 0.44/0.52)、环境自我认同 ( r  = 0.62/0.56) 和认同被认为支持气候友好行为的群体 ( r  = 0.48/0.51)，但认同与环境无关的群体的影响明显较弱主题 ( r  = 0.30/0.15) 和地点标识 ( r  = 0.18/0.32)。讨论了政策干预和心理学理论的影响。