This exchange between 56 young participants from Italy, Bulgaria, Turkey, Germany, Slovakia and France will take place from August 4 to 25, 2014 in Miramas, a small town (25,000 inhabitants), near the Etang de Berre which inspired our project. In fact, this is an area which has been deeply damaged by petrochemical pollution, having lost but now, hopefully, regained an important part of its biological diversity, thanks to the citizenship mobilization of local actors and inhabitants. It is a terrain for analysis and the theme of preservation of ecosystems around which we wish to be united in order to develop fruitful exchanges about environmental and citizenship issues in Europe today . To do so, we will assemble in order to construct our own methods and teaching procedures to send a strong message to numerous groups of public : at the agricultural college of Fontlongue where we will be received and where, during the three weeks of the exchange, we will build a symbolic area to be mounted and developed by the students during the year ; in the town of Miramas, and beyond Europe and Turkey with the help of numerous tools that we will set up thanks to the new technologies. We will build different supports (models, images, stories, scenes acted or danced) that it will be possible to present to various publics in situ or via the social media networks thanks to the skills of all the participants. We would like to prolong this encounter with a new exchange in 2015 to show the lasting nature of an action or of one temporality to another, but in good conditions and with a wide renewal of participants.