Have you ever heard of positive externalities, scopes, impact, neutrality or circularity ? But do you actually think it's only for startups and the happy few ? That's the challenge that Tiphaine Vidal and Marie-Lou Deschamps are taking up, to enable small and medium-sized businesses to understand and bring under control social and environmental issues. In this new episode of #WordofSustainableCompany, discover La Classe Verte program : a unique solution combining online train