In recent years, there has been a growing global awareness of environmental challenges and the imperative to find solutions for the well-being of our planet. Several governmental and non-governmental bodies have been working to address these climate issues by adopting ways to save our planet. Many of these initiatives lead to sustainable growth, allowing the respective bodies to grow and solve environmental problems. In particular, universities have recognised sustainability as a crucial component of social responsibility.
Leading universities across the world are undertaking initiatives to impact the environment positively. These initiatives encompass specialised study options, educating students across various disciplines on the environment, and engaging in sustainability research. Additionally, many universities have introduced on-campus sustainable initiatives that serve as practical learning experiences for students right where they are gaining education.
As institutions worldwide do their best to save the planet, the QS World University Rankings: Sustainability 2026 have evaluated 1,400 universities based on their ability to address environmental, social, and governance challenges. Among them are leading Irish universities that are positively impacting the world.
Learn more below, and if you want to study at a sustainable Ireland university, contact StudyIn for a free consultation today.
Best Ireland Universities for Sustainability 2026
1. Trinity College Dublin
Trinity College Dublin ranks 29th globally and 1st in Ireland in the QS World University Rankings for Sustainability 2026. The university has embedded sustainability across its operations, research, and teaching, with a dedicated Vice-President for Biodiversity and Climate Action leading strategic efforts. Trinity’s approach spans environmental impact, social responsibility, and governance, with strong collaboration between students, staff, and departments.
Initiatives include sustainable building practices, biodiversity enhancement, and low-carbon commuting options. Trinity also promotes climate literacy and civic engagement through interdisciplinary programmes and public events. Its performance reflects a whole-university commitment to shaping a more sustainable future.
- Trinity College Dublin acceptance rate: 33%
- Popular courses: Philosophy, Medicine, Engineering, and Environmental Science
- Percentage of international students: 28%
UCD is the largest Irish university, which is generally ranked among the best in many ranking systems at the global level. It is the top-ranked university in Ireland that is constantly improving sustainability throughout the campus.
UCD Global works on various sustainability initiatives to give students a more eco-friendly experience. They are given orientation workshops to help them understand how to recycle on campus and practice everyday eco-friendly habits. The university also publishes a UCD Global Green Guide that contains resources on sustainable travelling, living, transport and shopping in Dublin. The university promotes the Green Eramus+ initiative by the EU Commission. UCD has also led several initiatives to reduce carbon emissions among the students and university staff.
- University College Dublin acceptance rate: 20%
- Popular courses: Engineering, Computer Science, Humanities, Business and Medicine.
- Percentage of international students: 23%
Understanding the importance of sustainability to grow responsibly, Dublin City University has embedded the concept at the core of its functioning. The university promotes sustainability through its national and international engagements and has incorporated the principles in its teaching, learning, research, development and innovation. DCU has been working to meet the carbon-neutral challenge and has also introduced measures to combat climate change and biodiversity loss.
DCU also actively works to take forward its commitment towards the Sustainable Development Goals as adopted by the United Nations. The university has the DCU Sustainability Charter, wherein resources are readily available for students and staff to find ways to live sustainably in and around the campus.
- Dublin City University acceptance rate: 63%
- Popular courses: Data Science, Computer Science, Engineering, and Business
- Percentage of international students: 18%
UCC is generally considered Ireland’s ‘Green University.’ It has been on the path to achieving sustainability goals for over a decade by ensuring that the teaching, learning, research, and operations are focused on creating a better world. The Office of Sustainability and Climate Action at the university has been at the forefront of making efforts to enhance the university’s reputation as an award-winning sustainability institution.
The Green Campus Committee, established in 2007, and the Green Forum, operational since 2013, have been working to ensure that students and staff members work together to drive the university’s focus on sustainability.
- University College Cork acceptance rate: 40%
- Popular courses: Law, Nursing, Agriculture and Forestry, and Anatomy and Physiology.
- Percentage of international students: 17%
The University of Galway has considered sustainability as one of its core values for many years. It was also awarded the status of SDG Champion for 2023/24. Sustainability has now been enshrined in the Strategic Plan 2020-2025 of the university as one of the four values that drive everything done at the university, the others being respect, excellence and openness.
The university is committed to being an exemplar of climate action through the research, teaching, engagement and actions that are done at the university. Several unique projects and initiatives take forward the university’s commitment, such as the Use Your Mug, 2GoCup, Battle of the Buildings and Organic Waste Circular Economy Project.
- University College Dublin acceptance rate: 86%
- Popular courses: English, Performing Arts, Nursing, Environmental Sciences, and Law.
- Percentage of international students: 35%
The University of Limerick (UL) is among the best Irish universities that deeply understand the importance of saving our planet through different measures. The university works to protect the natural habitat of the campus by sourcing native species of bees and insects to be present within the ecosystem. Measures have been taken to ensure that all new buildings are energy efficient. This work is being done by the Buildings and Estate team at the university, which is also retrofitting older buildings to bring them up to the standard for today’s sustainability.
The university is particularly committed to adopting the practices that promote SDGs and has different departments and staff members working with students to ensure their efforts align with the SDGs.
- University of Limerick acceptance rate: 70%
- Popular courses: Computer Science, Mathematics, Accounting, Public Health and Surgery
- Percentage of international students: 15%
7. Maynooth University
Maynooth University is recognised for its strong commitment to environmental sustainability and climate justice. The university’s Green Campus Committee and Green Campus Strategy 2023–2028 aim to make Maynooth a model for sustainable planning, operations, teaching, and public engagement. The campus has earned ISO 50001 energy management accreditation and the Green Campus Flag from An Taisce.
Maynooth advances SDG 7 through energy-efficient infrastructure and research into renewable energy systems, including the SeaChange Project and RENEW DemoHouse. The university also promotes biodiversity, sustainable commuting, and water conservation across its vibrant campus.
- Maynooth University acceptance rate: 73%
- Popular courses: Sociology, Geography, Computer Science, and Energy Systems
- Percentage of international students: 12%
8. TU Dublin
Technological University Dublin (TU Dublin) ranks 1st in Europe and 17th globally for sustainability in higher education, according to AASHE’s STARS® system. The university earned Gold accreditation in its first submission, scoring highly across academics, engagement, operations, and leadership. TU Dublin’s Climate Action Roadmap outlines ambitious goals for carbon reduction, sustainable infrastructure, and inclusive education.
The university integrates sustainability into its curriculum, research, and community partnerships. Initiatives include refillable water stations, sustainable event planning, and the Sustainability Graduate Spotlight series, which showcases alumni driving change in industry and society.
- TU Dublin acceptance rate: 65%
- Popular courses: Architecture, Culinary Arts, Engineering, and Environmental Health
- Percentage of international students: 10%
9. RCSI University of Medicine and Health Sciences
RCSI has launched a comprehensive Climate Action Roadmap to achieve net-zero carbon emissions by 2050. Sustainability is embedded in decision-making across academic, research, and operational domains. The university offers a free CPD course in Sustainable Healthcare, empowering professionals to reduce the environmental impact of clinical practice.
RCSI ranks 5th globally for SDG 3 (Good Health and Well-being) and promotes sustainable building design, green labs, and low-carbon procurement. The new Humanarium space fosters public engagement with health, sustainability, and wellbeing through exhibitions and events.
- RCSI acceptance rate: 46%
- Popular courses: Medicine, Pharmacy, Physiotherapy, and Public Health
- Percentage of international students: 60%
10. South East Technological University (SETU)
SETU has rapidly emerged as a sustainability-focused institution since its founding in 2022. The university is certified to ISO 50001 for energy management and has committed to reducing water usage by 10% by 2030. SETU’s sustainability initiatives include installing 28 water refill stations, eliminating over 700,000 plastic bottles, and reducing 59,000kg of CO₂ emissions.
The university promotes the UN SDGs through teaching, research, and community engagement. Its multi-campus model supports regional development and environmental stewardship, with a strong emphasis on biodiversity, sustainable transport, and climate action.
- SETU acceptance rate: 80%
- Popular courses: Business, Engineering, Environmental Science, and Creative Media
- Percentage of international students: 8%
Study in Ireland
Do you want to study at a sustainable university in Ireland? Contact StudyIn today for a free consultation on your academic future.
FAQs
Which Ireland college has the best sustainability programme?
University College Dublin has the best sustainability programme in Ireland.
What are the challenges of sustainability in Ireland?
Ireland faces several sustainability challenges like many other countries, including environmental conservation, climate change, and resource management. The country is working toward reducing greenhouse gas emissions while transitioning to renewable energy sources to meet the overall climate action targets.
How is Ireland performing on the Sustainable Development Goals?
Ireland has made progress in addressing the Sustainable Development Goals (SDGs) by taking significant steps toward achieving goals related to clean energy, quality education, and gender equality. However, challenges persist in the climate action zone, where Ireland is trying to reduce greenhouse gas emissions and meet renewable energy targets.
