The Iran war has pushed up fuel prices and raised concerns about a global energy shortage. How well prepared is the Netherlands? We asked two experts.

From spiders in the bathroom to mice in the kitchen, we share our homes with far more species than we realise (whether we like it or not). Researchers at Leiden University and the University of Helsinki are collecting stories about how people live alongside these non-human housemates.

It was a memorable start to September. While Leiden marked the opening of the academic year, The Hague celebrated the launch of three new degree programmes. Students were welcomed on a blue carpet rolled out at the entrance to the lecture halls.

Not one, but two Olympic rowing medals with a Leiden-Delft touch. Master student Life, Science and Technology Stef Broenink won silver in the double pair. He and partner Melvin Twellaar were in front for a long time, but were overtaken by the French at the last minute.

LUC students and staff came together this past semester to transform a local urban garden into a hands-on space for learning, experimentation, and community building.

Global Transformations and Governance Challenges (GTGC) will hold its first international conference on 8-10 June 2022 in The Hague. Deadline submissions: 22 April 2022.

Sebastian Diessner, associate professor at the FGGA, recently appeared in an article called 'Inflation: a spring remontée des taux se dessine' (Inflation: a slow rise in rates is emerging) in the newspaper Le Figaro.

If European countries rely solely on technological advances, they won't be able to limit global heating to 1.5 degrees. Households will also need to change their lifestyles. This 'inconvenient truth' is the result of calculations done by industrial ecologist Stephanie Cap. ‘It's not a popular message,…

The financial sector, supply chains and ecology. Not necessarily topics you might associate with physics, yet it’s exactly what new professor Diego Garlaschelli is dealing with. The common thread? Complex networks.

With its FestivOWL theme, Orientation Week Leiden (OWL) promises to be one big festival for new international students in Leiden.

For the Bachelor Honours Class 'Mass Extinction', students produced podcasts about the past, the present and the future of mass extinctions. What exactly is lost when a species goes extinct? What are the practical consequences? But also: does humanity have the moral duty to protect other species?

Niels van Leeuwen is enrolled in the Master Public Administration: Economics & Governance. During the first stage of his master, he did an internship in the United States, at the economic affairs department of the Royal Netherlands Consulate General in Chicago. ‘There are more ways that lead to Rome…

Recently Professor Joanita Vroom’s book Feeding the Byzantine City was published by the prominent academic publishing house Brepols. This volume is the fifth in a series called Medieval and Post-Medieval Mediterranean Archaeology, of which she is the editor. ‘This series aims to offer new perspectives…

Career and apply for jobs

When deciding what to study you undoubtedly read a lot of information about your study programme. Leiden University employs various systems to provide information about programmes and courses and to facilitate communication between lecturers and students.

Students and researches from all faculties at Leiden University are warmly invited to a lunch meeting on Monday 14 October, discussing the rise of AI and the challenges this poses for various governance structures. The event is hosted by Leiden University’s interdisciplinary programmes GTGC and SAIL…

Opportunities and challenges of digitalisation, the platform economy, and flexibilisation of European labour markets.

Prof. dr. Joanne van der Leun is tot september 2025 door het College van Bestuur van de Universiteit Leiden herbenoemd als decaan van de faculteit Rechtsgeleerdheid.

What looked like an ordinary coot’s nest turned out to be a five-star location with a remarkable backstory. Beneath a jetty on the Rokin in Amsterdam, biologist Auke-Florian Hiemstra discovered a true time capsule — complete with face masks from the COVID era and a Mars wrapper dating back to the 1994…

Rain or shine: in the course ‘The Ecology Project’ students of Leiden University College visit the nature of The Hague each week.

It is with great sadness that we have received the news that Hugo Annard passed away on 30 July after a strenuous illness. Hugo had been enrolled at our Faculty as a student Public Administration, specialisation Economy, Policy and Management since 2019. He was also a member of the B.I.L. study asso…

Leiden biologists have found a mutation in flour beetles that allows them to speed up their development. The study has been published in Nature Ecology and Evolution.

Pesticides can form a toxic cocktail when they occur in combination in surface water. This is the finding of research that Leiden University and the Dutch National Institute for Public Health and the Environment (RIVM) presented on Monday 14 October. The Dutch Ministry of Infrastructure and Water Management…

The pesticide thiacloprid turns out to be more harmful than previously thought. It can disrupt the lives of freshwater invertebrates and their communities, upsetting the balance and functioning of entire freshwater ecosystems. This was shown by ecologist Henrik Barmentlo and colleagues, their research…

In a new study published in PLOS One, Leiden archaeologist Anastasia Nikulina, together with an international team from France, Denmark, the United Kingdom and the Netherlands, challenges the long-held belief that early humans had minimal impact on their environment before the rise of farming.

Should we be growing rice and building materials instead of grass for cows? From invasive crayfish to cultural heritage and groundwater levels: ten graduating students explored the future of the Groene Hart, the rural region just outside the cities of Delft, Rotterdam and Leiden where they study.

Hans Slabbekoorn is specialised in animal sounds. On 1 July, he was appointed professor of Acoustic ecology and behaviour. A great honour, according to the new professor. ‘This job never gets boring, whether I am investigating the urban jungle or marine noise.’

How unique is the human capacity for learning and adapting to an environment? In field research – in the rainforest and Artis Zoo – primatologist Karline Janmaat is studying how humans and other primates adapt to their environment in their search for food. She will give her inaugural lecture as Professor…

In the first episode of the podcast series, Andrei Marin, Associate Professor at the Norwegian University of Life Sciences, interviews Marja Spierenburg, Professor of Anthropology of Sustainability and Livelihoods and Scientific Director at Leiden University, along with Diana Vela Almeida, Assistant…

Leiden University has secured fifth place in SustainaBul, the sustainability ranking for universities and universities of applied sciences in the Netherlands.

In December 2020, Baoxiao Liu joined the Institute of Environmental Sciences (CML) to pursue her doctoral degree, focusing on land-based co-benefits for carbon and biodiversity in agriculture and food system transitions.

In a packed lecture hall at Wijnhaven, Nobel Prize winner Paul Krugman succinctly summed up the essence of his argument on Wednesday 17 September: ‘Running a good society is hard’. His lecture held up a mirror to economists and policymakers.