This article is about the importance of environmental citizenship as a factor of socio-professional insertion for students who terminate their schooling without a secondary or professional training diploma, in order to prevent that their school exclusion leads to a social exclusion. Results of a research on a socio-professional insertion program for youth that integrates environmental and sustainable development issues and the Corporate Training and Recuperation Centres Network (CFER) are presented and discussed. Those results tend to demonstrate that the students’ involvement in an environmental cause increases their empowerment towards complex social issues.