Green cities and a well-protected food system: Roy Remme and Oliver Taherzadeh study ways to achieve these. But how can their scientific findings lead to societal change? They share their experiences with science-policy initiatives.

The ‘Schijf van Vijf’ is the Dutch official dietary guideline, similar to a food pyramid, that shows what a healthy daily diet looks like. The updated version places more emphasis on plant-based eating. But how big is the impact of that shift really? We asked environmental scientist Joran Lammers.

Eighty students from universities across Europe and Africa are coming together this week to explore the topic of sustainability at the Una Europa Student Congress at Campus The Hague. The event is just one example of the many opportunities the alliance offers our students and staff.

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Arts and culture

Arts and culture

Arts and culture

Paul Behrens and his team have won the Frontiers Planet Prize of half a million euros for their research into the effects of switching to a plant-based diet.

Masses of hamburgers, steaks, cheese and a lot of eggs: Americans love their animal products. But researcher Oliver Taherzadeh discovered that only a relatively small group of high-volume consumers need to modify their diet to achieve an enormous environmental gain.

‘The climate crisis is the greatest threat we face,’ says Leiden University environmental scientist Paul Behrens. ‘And yet, there is hope. In the near future, I think we will wonder why we didn’t make these changes earlier.’

Leiden University, Delft University of Technology and Erasmus University Rotterdam have been collaborating intensively for many years. In 2012 this collaboration was formalised in the Leiden-Delft-Erasmus Universities strategic alliance. This has allowed us to approach important and complex societal…

Leiden University values participation: the participation organs are the ears and eyes of the university. They identify issues of concern among staff and students and help advise and decide on the future of our organisation. Something for you? Then stand as a candidate! This year, elections will…

This year, there are elections for the student section of the University Council and the Faculty Councils and the staff section of the University Council. Also ther are by-elections for the Faculty Council of Archeology and Social and Behavioral Sciences and the Employee Council of SEA. What topics…

Each year a staggering 18 billion chickens, turkeys, pigs, sheep, goats, and cows either die or are killed without making it onto someone's plate. Environmental scientists Juliane Klaura, Laura Scherer, and Gerard Breeman were the first to calculate this number on a global scale. 'Reducing these numbers…

During an evacuation, all employees and students gather at the coffee corner at the front of the University Library. Keep the road and the square clear for emergency services.

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Leiden University is committed to making your work safe, healthy and enjoyable.

Leiden University Press publishes academic books and journals, primarily in the field of humanities and social and behavioural sciences. The press focuses on Middle Eastern and Islamic Studies, History (Global, Military, Environmental) Archaeology, Asian Studies, Environmental Studies, Literary Studies,…

The University has established an Environmental Policy Plan, which sets a number of ambitious goals to reduce its direct environmental impact and CO2 footprint and to raise staff awareness of sustainable and eco-friendly operations.

Good teaching is a skill in itself. In order to guarantee the quality of education in the Netherlands, the University Teaching Qualification (Basis Kwalificatie Onderwijs, BKO) is now compulsory for all lecturers, university lecturers (UD), senior university lecturers (UHD) and professors. What does…

Good teaching is a skill in itself. In order to guarantee the quality of education in the Netherlands, the University Teaching Qualification (Basis Kwalificatie Onderwijs, BKO) is now compulsory for all lecturers, university lecturers (UD), senior university lecturers (UHD) and professors. What does…

The theme Sustainability is one of the five continuous developmental themes in the strategical plan Innovating and connecting – 2022 - 2027 of Leiden University. Making sustainability one of the hot topics.

Leiden University offers housing facilities for international PhD's and other visiting academic staff. Read about the application process for university housing. If you need tenants for your apartment or family house in Leiden and its surrounding area, we will gladly help you rent it to our international…

At Leiden University, we know a long tradition of working with international partners. To encourage successful and strategic partnerships, the Leiden University Global Fund (LUGF) was established in 2024. This fund is intended to invest in worldwide partnerships, activities and initiatives. One of the…

At Leiden University, we expect our researchers and lecturers to share our ambition to become one of the best. The commitment and quality of our supporting staff is crucial to achieving this. We therefore encourage our staff members to continue to develop their skills. This is the crux of our HR pol…

Bachelor, Master, PhD, Staff

During an evacuation, all employees and students gather at the greens near the beach volleyball fields, next to the University Sports Centre.

During an evacuation, all employees and students gather at the coffee corner at the front of the University Library. Keep the road and the square clear for emergency services.

The University Sports Centre (USC) offers more than 55 sporting activities and classes. Staff members are entitled to a huge discount on membership of the USC.

The Procurement Service supports purchasing processes and European tenders in particular.