In recent years, the urgency of addressing environmental challenges has reached a critical point. The consequences of climate change, biodiversity loss, pollution, and unsustainable consumption patterns are no longer abstract threats - they are part of everyday reality for young people across Europe. According to the European Environment Agency, 2023 was the hottest year ever recorded globally, with Europe experiencing an average temperature 2.3°C higher than pre-industrial levels. Climate-induced events such as droughts, wildfires, and floods are increasing in both frequency and intensity, affecting vulnerable populations, especially youth in rural, coastal, and economically disadvantaged regions. The Intergovernmental Panel on Climate Change (IPCC) warns that without urgent action, the planet is on path to excel the 1.5°C starting point within the next ten years - crossing into unrepairable environmental damage. The European Union has responded with the European Green Deal, setting targets to achieve climate neutrality by 2050. Yet, reaching these goals requires not only policy reform but also attract organisations to this problem, especially in the field of youth work and non-formal education. At the same time, young people are demonstrating increasing ecological awareness. The Eurobarometer on Youth and Democracy (2022) posted that 78% of young Europeans consider protecting the environment and fighting climate change a top priority. However, there remains a disconnect between young people’s motivation and the support systems available to help them take action, especially through structured learning in youth work. Despite this interest, many youth workers across Europe report a lack of training, tools, and resources to confidently include environmental education into their work. According to the Council of Europe’s initiative on “Deepening Quality and Sustainability of Youth Activities”, there is a clear need to strengthen the competences of youth workers and trainers in delivering high-quality non-formal education, particularly in the context of environmental sustainability. This highlights a widespread gap in the sector, where many youth workers lack the necessary tools, resources, and training to confidently lead sustainability-focused educational activities. Moreover, sustainability is not only an environmental issue - it is a social and civic one. Young people with fewer opportunities, including those from low-income families, migrants, or marginalized communities, are both more vulnerable to the consequences of environmental degradation and less likely to be involved in environmental decision-making. Therefore, it is crucial that sustainability education be inclusive, participatory, and empowering, reflecting the diversity of young people’s lived experiences. This project is a direct response to these challenges. It aims to strengthen the capacity of youth workers across Europe to deliver inclusive, and practical non-formal education on sustainability. It also promotes a deeper understanding of how environmental responsibility connects with civic engagement, youth participation, and social equity. The specific objectives of the project are to: - Build the environmental competences of youth workers through non-formal education methods, allowing them to confidently facilitate workshops and local actions on sustainability topics such as responsible consumption, waste reduction, circular economy, and eco-activism. - Promote inclusive sustainability education, ensuring that young people with fewer opportunities are included in environmental discussions and empowered to act. - Foster critical thinking and systems thinking among youth workers, helping them and their target groups to better understand the interconnectedness of ecological, social, and economic issues. - Encourage the design of follow-up eco-initiatives in each participating country, with youth workers supported in putting the training results into local realities through campaigns, educational activities, or youth-led sustainability projects. - Strengthen cross-border cooperation between European youth organizations committed to sustainability, facilitating the exchange of good practices, resources, and learning models that can be adapted and multiplied across contexts. - Raise awareness about the role of youth work in contributing to the European Green Deal and the UN Sustainable Development Goals (SDGs), particularly Goal 4 (Quality Education), Goal 11 (Sustainable Cities and Communities), Goal 12 (Responsible Consumption and Production), and Goal 13 (Climate Action).