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<p>Public-sphere pro-environmental behaviors play an important role in facilitating collective environmental action and promoting systemic change in environmental governance. However, existing research has largely focused on private-sphere behaviors, leaving the mechanisms underlying public-sphere pro-environmental engagement insufficiently understood. Grounded in the Social Identity Model of Pro-Environmental Action (SIMPEA), this study investigates how environmental threat perception is associated with public-sphere pro-environmental behaviors through pro-environmental social identity, and whether this relationship is moderated by collective efficacy. Two complementary studies were conducted among Chinese college students. Study 1 recruited 330 participants (M = 22.33, SD = 2.69, 171 females) via a survey design. Study 2 recruited 323 participants (M = 22.22, SD = 2.62, 158 females) via an experimental design. Results show that environmental threat perception is positively associated with public-sphere pro-environmental behaviors. Pro-environmental social identity significantly mediates this association. In addition, collective efficacy moderates the association between pro-environmental social identity and public-sphere pro-environmental behaviors, such that the association becomes stronger under higher levels of collective efficacy. Overall, the findings support a moderated mediation mechanism linking environmental threat perception to public-sphere pro-environmental behaviors via pro-environmental social identity, contingent upon collective efficacy. These findings contribute to SIMPEA by highlighting identity-based and context-dependent mechanisms underlying collective environmental action.</p>

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The relationship between environmental threat perception and public-sphere pro-environmental behaviors: a moderated mediation model

  • 期刊论文

  • 发表日期：

    2026年7月6日

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  • Duyan Yue,
  • Jingyao Cheng,
  • Hao Tian

摘要

Public-sphere pro-environmental behaviors play an important role in facilitating collective environmental action and promoting systemic change in environmental governance. However, existing research has largely focused on private-sphere behaviors, leaving the mechanisms underlying public-sphere pro-environmental engagement insufficiently understood. Grounded in the Social Identity Model of Pro-Environmental Action (SIMPEA), this study investigates how environmental threat perception is associated with public-sphere pro-environmental behaviors through pro-environmental social identity, and whether this relationship is moderated by collective efficacy. Two complementary studies were conducted among Chinese college students. Study 1 recruited 330 participants (M = 22.33, SD = 2.69, 171 females) via a survey design. Study 2 recruited 323 participants (M = 22.22, SD = 2.62, 158 females) via an experimental design. Results show that environmental threat perception is positively associated with public-sphere pro-environmental behaviors. Pro-environmental social identity significantly mediates this association. In addition, collective efficacy moderates the association between pro-environmental social identity and public-sphere pro-environmental behaviors, such that the association becomes stronger under higher levels of collective efficacy. Overall, the findings support a moderated mediation mechanism linking environmental threat perception to public-sphere pro-environmental behaviors via pro-environmental social identity, contingent upon collective efficacy. These findings contribute to SIMPEA by highlighting identity-based and context-dependent mechanisms underlying collective environmental action.