In August 2008, for the first time the teachers' seminar focused on previously trained teachers. This provided the opportunity to exchange of experiences as well as discuss possible extensions of the program. The wish was expressed that work should be carried out increasingly with entire school units. This meant not only studentes enrolled in the environmental clubs, but also other students and/or their parents should be involved in environmental projects. Such a inclusions would strenghten the impact of the projects in the communities and enhance their long-term effect.