“…In another study, Chao and colleagues (2023) demonstrated that intrinsic motivation, interpersonal altruism, and place attachment positively predicted undergraduates' recycling behavior. Having knowledge about environmental issues (e.g., Baba-Nalikant et al, 2023;Levy & Marans, 2012;Liao & Li, 2019;Qu et al, 2023), environmental concern (e.g., Chao et al, 2023;Hamilton & Rane, 2022;Qu et al, 2023), the existence of subjective norms regarding ecological conservation (e.g., Liao & Li, 2019), moral obligation (e.g., Largo-Wright et al, 2012), membership in ecological organizations (e.g., Helferty & Clarke, 2009), the inclusion of environmental issues to lectures (e.g., Pizmony- Levy & Michel, 2018), and prioritizing biospheric values (e.g., Hamilton & Rane, 2022) are the other predictors of on-campus pro-environmental behaviors.…”