The aim of the "Natural identity" Youth Exchange is to make young Europeans aware of the impact of humans on the planet and the challenges of sustainable development. Raising the interess in the environmlent and the value of daily action to protect it is our target, European yougsters, have unequal knowledge on this subject according to their interest, but also their environment, their country and their level of education. . They do not always know how small daily actions can affect our eco-system. All around the world, everyone is facingwith the consequences of the climate change and a lot of individuals improve certain practice to reduce their impact, reducing electricity consumption, consuming locals products or changing some little not suistainable daily habits, creating short circuits... That is why, every day, new initiatives of local communities are emerging to reduce our ecological impact on the planet. However, if nobody communicates on these, these ideas remain only where they are created and do not benefit the international community. This project aims to bring together youngsters from different countries and backgrounds to share and learn about this topic through non-formal learning processes, fun games and concrete situations in contact with nature. The Exchange with experts on the subject, and youngsters from different backdrops, cultures and environments, who have a different awareness on this theme, may allow them to raise their knowledge, but also to have a "Natural Identity" awareness as eco citizens that will result in personal commitments beyond the scope of this project.