The goals of the project were to create an awareness among the German, Spanish, Polish and Danish students in terms of the specific environmental challenges the different partner countries have to cope with. Furthermore, the students learned from each other by working on the best practices, observation and analyses. Not only the environmental but also the economic and social consequences of these challenges were discussed. In our European context the number of natural catastrophes likefloodings, heavy storms as well as very dry periods have dramatically increased in the last decades and all these phenomena have also led to an economic damage which has caused a serious imbalance in the economic and social systems on our continent. The challenges we are confronting were used as the starting point of a basic understanding showing the way to an awareness that something has to be done not only by governments and businesses but also by the individual. The students were encouraged to take responsibility. The wish to live in a Union which guarantees a safe future, the common goal was to involve our students in learning about the different approaches towards environmental problems which are embedded in a tense and complicated political situation - a challenge for every European citizen. A fundamental approach of the project was the comparison of strengths, weaknesses, opportunities and threats of predominantly environmental issues in the participating countries. Another important aim was the contact with other cultures as a basic key in the learning of a foreign language as a means of communication to bring us closer to one another. At the same time we encouraged the students to enhance their digital performance by using different tools like social networks. We profited from this so-created open-mindedness which allowed a critical reflection not only on our own culture but also on the European one. Let alone each partner’s school enriches its own community. A joint website was be created for the students to put their findings and conclusions, both during cross-national meetings and during the work carried out on a regular weekly basis in all participating schools (https://erasmusxplus.wixsite.com/website). The large network of European schools gives opportunities to less experienced and experienced schools to share and transfer knowledge and to join together a considerable number of students and staff in order to widen their horizon.