TRUTH4YOUTH engages over 1,700 young people across Europe to become resilient digital citizens and active defenders of democratic values. The project bridges the gap between the risks of climate misinformation, online disinformation, and the urgent need for informed, critical civic engagement among youth. Youth workers and young people are equipped with digital resilience skills, fact-checking techniques, and participatory civic tools, helping them recognize, counter, and prevent information manipulation, especially in the climate and sustainability fields. Participants will co-create counter-narratives, practice pre-bunking techniques, lead peer-learning initiatives, and take part in Living Labs that simulate real-world civic challenges.