Through my immersion in citizen resistance movements against invasive ″development″ projects, and my exploration of diverse ecosocial creative initiatives, I have observed the ongoing processes of knowledge construction and very often, the emergence of a collective and powerful intelligence in the mobilized groups. Noting the gap between school and such contexts of rooted and meaningful learning, some questions emerged: how can formal education build on these informal leaning dynamics so as to empower youths/citizens willing and capable of contributing to social debates and transformations for better living together within our oikos? In this perspective, how can the barriers between formal, non-formal and informal learning contexts be broken? More specifically, beyond any globalizing educational projects, what is/could/should be the contribution of environmental education to our human journey in this world?