Scholars are grappling with what educational and pedagogical approaches are needed to create sustainable entrepreneurs able to cope with sustainability challenges. This paper explores the impact of a student-focused climate entrepreneurship education initiative (CEE) in Technological University Dublin (TU Dublin). The paper draws on models and frameworks in the literature that integrate programme objectives and pedagogical methods with impact. The paper addresses two key questions. Firstly, how are students impacted by CEE in terms of the affectedness, skills development and the intention to start a climate enterprise. The second question asks how different types of interventions in CEE influence student impact. The study contributes to the emerging body of literature on sustainability enterprise education (SEE) by firstly, showing interventions needed to embed climate impact into a customer value proposition; secondly, suggesting a simplicity paradox for stronger SEE impact; and thirdly, offering insights for designing CEE programmes for university-wide impact.