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A focused workshop on the UI GreenMetric World University Rankings was held on 19th December 2024 at the Faculty of Humanities and Social Sciences, Open University of Sri Lanka (OUSL). The session, conducted by Dr. Yohan Mahagamage from the Centre for Environmental Studies and Sustainable Development (CESSD), provided an insightful introduction to the UI GreenMetric Rankings—a global system that evaluates universities based on six key sustainability categories: Infrastructure, Energy and Climate Change, Waste, Water, Transportation, and Education & Research. Focusing on practical strategies to improve OUSL’s environmental performance and position in green university rankings, the workshop encouraged participants to take meaningful action. Guided by the theme “Small Actions Today Lead to a Greener Future,” the event inspired faculty members to embrace sustainable practices and actively contribute to building a greener, more eco-conscious campus.