ABSTRACT
This chapter outlines a comprehensive sustainability phase model that emerged from a review of the literature on the development of both ecological and human sustainability. It argues that building corporate sustainability can lead to sustained long-term performance. The unified approach, combining ecological and human sustainability, is designed to bring about a change in the interpretation of corporate sustainability and to support the activities of change agents in bringing about sustainability in a systematic way. Studies of historical stages/phases underlying the moves towards human sustainability are rare. The relationship between the aspects of sustainability should be recognised as symbiotic rather than artificially divided. Hewlett-Packard's environmental strategies and solutions programme showed that sustainability can offer companies a strategic competitive advantage. The model presents a comprehensive case for integrating human and ecological sustainability approaches and is an initial platform to further develop an understanding of the change processes involved in shifting organisations to corporate sustainability.
