The project “Be the Change” is a KA2 Erasmus+ partnership between 6 schools (in Norway -the coordinator- Portugal, Spain, Greece, Bulgaria and France) which addresses the environmental challenges we are facing today . We aim at developping good practices for cross-curricular teaching to address the complexity of the environmental crisis. We will address the three important elements of Education for Sustainable Development underlined by Palmer: “Education about, in and for the environment”. We will endeavour to develop the skills necessary for our students to meet the challenges of the environmental crisis and make them actors of the necessary changes.