Concern for the environment is gathering in importance within organisations and it is increasingly becoming part of organisational strategic agendas. Within that dynamic, organisations are seeking mechanisms through which environmental concerns are championed and fostered. In this paper, we argue that entrepreneurialism can be an effective such mechanism. But we further argue that this will be predicated on taking a different view of the basis of entrepreneurial behaviour, one that is based on various dimensions of commitment. We posit a model of environmental entrepreneurship and discuss the organisational implications of the model.