There is no planet B! For several years now, a growing number of scientific reports have been warning of an ecological emergency characterised by four inseparable dimensions: climate change, biodiversity loss, chemical contamination and mass poisoning, and the depletion of natural resources. The richest 12% of the world's population consumes 40% of the energy produced and emits 45% of greenhouse gases. And it is the poorest populations who pay the heaviest price for environmental degradation, which leads to food, energy and health insecurity. In addition, the rise in anxiety and fear, also born of the ecological emergency, provides fertile ground for populism, fanaticism, conspiracy theories and authoritarian regimes. More and more young people are taking up environmental and climate issues. The predictions given in the latest IPCC report (the possibility of a world +4°C warmer in 2100), coupled with the feeling that politicians are failing to take action to reverse the trend of climate change, are leading young people to mobilise. The acceleration of global environmental impacts, combined with an increased awareness of the ecological situation among young people, justifies the importance of offering intercultural exchanges that incorporate an ecological transition approach, both in terms of educational content and logistical organisation, which is a real guarantee of meaning and interest for participants. However, it must also be noted that young people's engagement with environmental issues shows socio-demographic disparities. The majority of young people who get involved are from higher social classes, have higher education qualifications, are in stable situations, particularly in their working lives, and whose parents are already politically active. Based on this observation, our project idea was born: to bring together young people from Germany, France and Morocco with less privileged family backgrounds to learn in a non-formal and informal way in an international environment. The main aim of the project is to empower and support young people from the three countries to become more actively involved in building a sustainable future within civil society at local and/or regional level, in order to become actors of change for sustainable development, environmental protection and international cooperation. The project will enable young people to get to know each other, to develop a deeper understanding of the environmental crisis, its causes and its consequences, to get to know the culture and daily life in the three countries, and to mobilise the young people and to strengthen their capacities to become actively involved. In addition to the objectives related to the theme of sustainable development, our project has the following objectives: - bring together and connect participants from European and non-European countries, particularly Morocco, to encourage the promotion of diversity and commun values; - create a participatory, intercultural and interlinguistic setting to establish links between young people from the north and the south of the Mediterranean; - deepen the knowledge about the three participating countries (culture, history, society, etc.); - discuss and exchange on the daily live of young people; - become awaren of the cultural influences on their own thinking, behaviour and reactions; - question themselves and become aware that certain realities that are considered normal vary from country to country; - introduce participants to ways of engaging as (European) citizens and encourage them to see themselves as full actors in the present and the future; - become aware of how to move from motivation to awareness and then to concrete civic engagement, and bring out new ideas how to get involved in environmental issues at the local level; - improve the social and intercultural skills and the ability of participants to understanding today's society; - increase the participants' capacity for autonomy and sense of responsibility; - make mobility possible for all interested young people and also for those who face barriers to mobility (e.g. financial barriers). - experiment with new communication strategies; - value all languages and discover and practise foreign languages through language animation; - design and documenting the exchange using creative materials and then disseminating the results of the week to valorise work and mobility experience of each participant.