In our Erasmus+ KA229-Project schools from Denmark, Spain, Romania, Turkey and Germany are dealing with the topic climate change. The project’s goal is, on the one hand, to sharpen our students’ and our communities’ awareness concerning climate change including a willingness to get involved on a political and personal level. On the other hand, we want to show our participating students European diversity, and, very importantly, the relevance of European and global co-operation as this challenge can only be tackled by common international collaboration.