This study proposes to highlight the role of transformation leadership in enabling environmental sustainability efforts. In this regard, a mediating role of green human resource management is investigated to understand the association between transformation leadership and environmental sustainability. The study follows a quantitative and cross-sectional research approach. A self-administered questionnaire was used to collect the responses from 200 managerial-level employees of ISO-14001 certified textile organizations in Lahore, Pakistan. Furthermore, the study hypotheses were tested by applying linear regression and Hayes’ Process in SPSS to determine the interconnected dependence of the study variables. The findings of the study demonstrate that transformational leadership plays an instrumental role in the implementation of environmental sustainability strategy. The results also reveal that green human resource management significantly mediates the relationship between transformational leadership and environmental sustainability. The research outcomes portray a stringent need to apply the transforming abilities of the organizational leaders for fostering environmental initiatives; a contribution to a broader cause of global environmental sustainability