According to the European Parliament and European Commission, across Europe, the EU defines Environmental Protection of Cultural Heritage as the safeguarding, conservation, and management of both tangible and intangible assets against threats like degradation, climate change, and development. Unfortunately, cultural-historical heritage sites, both tangible, such as monuments, historic and archaeological sites, and intangible, including living traditions, customs, folk stories, and cultural practices, are facing escalating threats from climate change, environmental degradation, mass tourism, and unsustainable human activity. The European Heritage Hub and UNESCO research confirm that extreme weather events such as heatwaves, floods, droughts, rising sea levels, and increased rain are already causing visible damage to tangible heritage sites. At the same time, intangible cultural heritage is affected by the disruption of natural environments and community life in which traditions, skills, and cultural practices are rooted, leading to the gradual loss of intangible cultural knowledge, customs, identity, and practices rooted in local communities Cultural heritage across Europe is increasingly threatened, yet responses remain fragmented, leaving many sites vulnerable and risking long-term social and economic impacts. Young people, as future guardians, have few opportunities to engage in preservation, as heritage protection is often seen as an institutional duty and disconnected from climate action. Consultations in Bulgaria, Spain, Italy, Türkiye, Romania, and Serbia revealed strong youth concern over heritage loss and a lack of tools linking environmental protection, climate preparedness, and heritage preservation, highlighting the urgent need to empower youth with the knowledge, skills, and motivation to protect heritage while fostering environmental awareness, cultural identity, and community engagement. Therefore, the “Eco-Heritage Resilience” project will bring together 42 participants aged 18 - 29 from Bulgaria, Spain, Italy, Turkiye, Romania, and Serbia, along with 2 facilitators from Bulgaria, to explore how climate change, human impact, and environmental degradation affect European Historical/Cultural Tangible and Intangible Heritage sites and forms. Through interactive workshops and methods, participants will develop an interactive, adaptable, and user-friendly Youth Digital Heritage Protection Map for youth and NGOs, with youth-led sustainable preservation ideas, examples, and plans for their local heritage sites, identifying vulnerable sites, related cultural practices, and eco-friendly preventive solutions, and produce awareness-raising videos. The project aims to strengthen youth participation in heritage protection, support community-level climate preparedness, and foster long-term responsibility for safeguarding Europe’s cultural heritage. Through the Preparedness Union Strategy (EPRS 2024), our goal is to move beyond simple awareness to help participants understand better how to build 'Resilience Frameworks' that protect community identity O1: By the end of the mobility, at least 90% of the 42 participants will gain a deeper understanding of how key environmental threats, specifically climate change, pollution, and mass tourism, negatively impact both tangible and intangible cultural heritage, as measured through pre-and-post reflections in line with European Green Deal priorities O2: To acquire and apply at least 6 practical, sustainable methods for heritage protection through non-formal educational activities such as site observation, environmental mapping, eco-friendly simulations, and community-based problem-solving tasks, documented through group outputs and daily activity reports O3: During the project, create 6 youth-developed sustainable preservation action plans for their local heritage sites, 1 per community, that promote environmentally responsible behavior, community involvement, and youth advocacy for cultural heritage protection, with at least 80% of participants having increased motivation to engage in local or European heritage protection initiatives after the project O4: Strengthen intercultural dialogue and European cooperation, enhancing understanding of cultural diversity, of the common European heritage, and of the role of young people in promoting solidarity and active citizenship The project objectives are structured as a clear progression from understanding environmental threats to heritage, to applying practical protection methods, to developing long-term commitment and advocacy, and finally to strengthening European cooperation among youth as active custodians of cultural heritage