Higher Education Institutions are central agents for environmental sustainability, yet campus-wide initiatives frequently encounter operational bottlenecks among the student body. This study investigated the practical, structural, and behavioral barriers preventing student engagement in the "Greenovation" program at the University of the Cordilleras in Baguio City. Employing a quantitative, descriptive research design grounded in the Diffusion of Innovations framework, data were gathered from a stratified sample of n = 391 students across 11 academic colleges using validated diagnostic survey checklists and open-ended text fields. Quantitative data were processed using frequency counts and percentage ranking, while qualitative responses were evaluated via thematic analysis. The findings reveal a complex, multi-dimensional matrix of participation obstacles. Psychological and behavioral constraints emerged as the most widespread hurdles, led by a lack of personal interest and academic time limitations (68.0%). Resource limitations presented severe practical barriers, characterized by inadequate funding for student-led eco-projects (64.2%) and the high cost of green consumer alternatives (50.6%). Structurally, data dissemination blockages (49.1%) and fragmented administrative reporting systems (44.5%) significantly widened the campus "awareness-action gap," causing students to disengage from reporting infrastructure issues like facility leaks. Qualitative feedback further highlighted visibility gaps, slow administrative responses, and peer social apathy. The study concludes that objective environmental guidelines are ineffective without strong internal support structures. Fostering an active green culture requires centralized data platforms, student-accessible micro-funding, and continuous capacity-building workshops to bridge the gap between sustainability awareness and actual student action.