Global warming and loss of biodiversity are major challenges facing Europe and the world today. Through the Green Deal, the European Union is taking action to fight the climate crisis and work towards a greener and fairer society in a more sustainable Europe. Laws and policies are crucial but they are not enough, our everyday actions and choices also matter. SENSE eTwinners are very aware of the problems faced at school to put into practice sustainable projects, and to develop a long-term programme coherent with the curricula, where all the school agents are involved. The idea is to create a broad participatory project, based on collaboration, innovation, and evaluation of information processes.