Dr. Daniel Oliveira is a geographer and marine social scientist with interdisciplinary training in Geography, Sustainable Urbanism, and Environment and Sustainability. He holds a PhD from NOVA University of Lisbon, formally distinguished for methodological innovation, where he developed an original qualitative framework combining netnography, critical cartography, and generative themes to examine how coastal communities articulate sustainability concerns through social media and everyday digital practices. His doctoral research introduced creative and ethnographically grounded approaches to the analysis and representation of community-defined environmental problems, linking online narratives with memory, place, emotions, and future aspirations in coastal and peri-urban contexts. This work contributes to advancing qualitative and interpretative methodologies in sustainability research, particularly at the intersection of digital environments and local knowledge production. Beyond his PhD, Dr. Oliveira has consolidated a transdisciplinary research profile grounded in action-research, participatory methods, and science–society collaboration. He has played an active role in European-funded projects such as Partibridges and Action-Research for Youth in Europe (AYE), contributing to project design, methodological development, training modules, and work package coordination. Through these projects, he has co-developed educational programmes, community-based training and participatory tools that translate locally grounded knowledge into collective learning, civic engagement, and sustainability-oriented action. Dr. Oliveira is a researcher at the Ocean Literacy Observatory (OLO), part of the MARE – Marine and Environmental Sciences Centre, where his work bridges marine social sciences, cultural geography, and sustainability studies. He is actively involved in teaching and training activities at NOVA University of Lisbon and in international contexts, particularly in the areas of marine social sciences, participatory research, and qualitative methodologies. His research interests include local and community knowledge, digital ethnography, coastal sustainability, cultural and critical mapping, and the role of creative and qualitative methods in advancing socially engaged sustainability research. Through his work, Dr. Oliveira contributes to rethinking how universities engage with communities, how sustainability problems are defined from the ground up, and how research can foster more inclusive, reflexive, and context-sensitive responses to social-ecological challenges.