7. Conclusion
The concept of Sustainable Development is central to Education for Sustainable Development. A holistic understanding of the SD concept on the part of the several stakeholders is of high importance. This paper explores the degree to which SD conceptions of academics in the field of ESD worldwide is holistic, and if there are any differences among them. If academics do not hold a holistic view of SD, it is most possible that their courses, as part of teacher training programmes, will not convey a holistic understanding of the SD concept. However, this study provides evidence that academics in the field of ESD do not see the SD concept holistically. Their tendency to recognize the social and economic dimensions more than the environmental ones, allows us to distinguish ESD teaching from an EE tradition, which may have implications for ESD research and practice. In addition to this, there is no consensus among the academics as to the meaning of the SD concept. Academics have diverging SD conceptions, which may have implications for teacher training programmes as well.
Further research is now needed to examine how the SD conceptions of ESD academics influence student teachers’ conceptions. Future research should also examine the SD conceptions of other university stakeholders and their influence on trainee teachers’ SD conceptions. Such stakeholders are administrators, fellow trainee students, and the academic staff of other subjects (e.g., STEM, social sciences, arts), who also teach in teacher training programmes.