Different experiences of the researchers and the degree of their personal involvement in various research areas and fields have been used through collaboration. The researchers involved have expanded their experience with a sustainability perspective, which is a specific requirement for the JTES publications. It is not an easy task to connect the context and conceptual basis of different educational research topics with the phenomenon of sustainability. Especially this is due to the fact that the idea of sustain-ability and the origin of the concept have different sources and explanations since its inception. This diversity of origin also enters educational research for ESD. However, the wording available worldwide does nothing to promote sustainable attitudes and ESD. There is a tendency often observed to continue keeping sustainability unsustainable. Therefore, in the JTES articles we cannot do without addressing the problems of the Anthropocene age and searching for solutions that can reduce the unsustainability of the age, which threatens the viability of nature and humanity.