This page reviews how sustainability has been understood and assessed in higher education so far, and why a new, integrated approach is needed.
The Rise of the "Green University"
Over the past three decades, a rich body of theory and practice has emerged around sustainability in higher education, typically under the labels of the "green university" or "green campus." Universities worldwide have established sustainability offices, adopted environmental policies, invested in energy efficiency, and integrated sustainability topics into teaching and research.
How Universities Measure Sustainability Today
A number of international assessment tools accompany this movement. The most widely used include:
• UI GreenMetric World University Rankings: campus- and environment-focused indicators;
• AASHE STARS: a self-reporting framework strong on operations and education;
• THE Impact Rankings: measuring university contributions to the SDGs;
• AISHE, GASU, SAQ and other audit instruments: questionnaire- and audit-based approaches;
• Commitment frameworks such as the Talloires Declaration and the ISCN Sustainable Campus Charter.
These instruments have raised awareness, created benchmarks, and motivated thousands of institutions to act. Their contribution is undeniable.
The Gap: Fragmented and One-Dimensional Assessment
Yet research, including the analyses conducted within TranSustain HE's scientific work package, shows consistent limitations across existing approaches:
• They focus predominantly on the environmental dimension, while social and financial sustainability remain underrepresented;
• They are largely output-oriented: by rewarding visible, countable results, they can push institutions towards forced, short-term achievements, while the inputs that build lasting capacity, such as education, infrastructure, and long-term investment, remain undervalued;
• The third mission, the university's contribution to society and the public sphere, is barely covered;
• Governance and feedback mechanisms, which turn isolated practices into institutional strategy, are rarely assessed;
• Results across tools are difficult to compare, and sustainability often remains an "add-on" rather than a core institutional principle.
Towards the Sustainable University as a System
TranSustain HE builds on this diagnosis. Instead of treating sustainability as a checklist of green practices, the project approaches the university as a living system in which environmental, social, and financial dimensions interact across the full process cycle: from framework conditions, through inputs, to outputs and feedback.
In this cycle, inputs and outputs carry equal weight. Long-term capacity building counts as much as visible short-term results, so that universities are rewarded for planting trees, not only for harvesting fruit.
The result is a holistic, comparable, and practice-oriented evaluation model, developed with and for universities.
→ Continue reading: Core Concepts
This project is co-funded by the European Union under the Erasmus+ Programme (2021–2027), Key Action 2 – Cooperation Partnerships in Higher Education, administered by the Turkish National Agency (TR01), Grant Agreement No. 2025-1-TR01-KA220-HED-000362010.
TranSustain HE Project Coordination Team
TranSustain HE Project Coordinator
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The European Commission's support for the production of this publication does not constitute an endorsement of the contents, which reflect the views only of the authors, and the Commission cannot be held responsible for any use which may be made of the information contained therein.