The civil society is and remains the most appropriate framework for an economy of gratuity and fraternity. It is inseparable from the other two domains, which are the markets (the companies) and the State (the public authorities). The humble contribution of the NGO UTI-DED to the subject is to refocus the role of the family unit, i.e. the family organization, at the center of environmental protection and sustainable development by using the formula "act local, think global", used by René Dubos at the 1972 summit on the environment, which is often invoked in the problems of sustainable development. Our vision is to involve all the children, teenagers and young people in the decision making process through the realization of our project entitled REMS ' Respect for the Environment in Schools' by providing courses in environmental education and sustainable development and by taking social actions so that they adopt ecological gestures and behaviors at an early age, thus responding tochapter 25 of Agenda 21 entitled "Role of children and youth in promoting sustainable development".