The establishment of the JTES was not only a direct goal of the Journal. In the beginning, it was visualized as an idea for a journal, which would be included in an environment of cooperation between educators and researchers, where the interests of network members would coincide with the interests of the journal. The establishment of the JTES is the result of international collaboration promoted through an open dialogue on the reorientation of teacher education towards sustainability, which was sought on the basis of participatory action research and initiated at the beginning of the 21stcentury. It has been 20 years since the purposeful creation of an environment for international cooperation in establishing and maintaining the Baltic and Black Sea Consortium for Educational Research for ESD (BBCC).