This paper contributes to the ongoing discussion of sustainability behaviors by introducing the construct of perceived organizational support toward the environment. We propose and empirically test an integrated model whereby we test the association of POS-E with employees’ organizational citizenship behaviors toward the environment as well as to job attitudes. Results indicated that POS-E was positively related to OCB-E, job satisfaction, organizational identification, and psychological empowerment, and negatively related to turnover intentions. We also found that psychological empowerment partially mediated the (...) relationship between POS-E and the dependent variables. We discuss the theoretical implications as well as practical implications for managers seeking to encourage sustainability in their organizations. (shrink)