Agricultural production is one of the most vulnerable sectors to climate change around the world, and poorer countries face significantly more difficulties than the developed world. Coffee is an agricultural commodity that most people enjoy but are oblivious to the climate-related challenges affecting…

Opponents of drastic nitrogen measures argue that the nitrogen calculation model is not reliable enough. Nitrogen professor Jan Willem Erisman: 'It is now much more important to discuss the choices we make on the basis of the outcome. The differences are much bigger than the uncertainties in the mod…

Strengthening nature and at the same time investing in future-proof agriculture. That is the task of the Minister for Nature and Nitrogen, Christianne van der Wal. It is also the lifework of Leiden professor Jan Willem Erisman. He has been researching nitrogen for his entire career and has shown that…

CML grants three Stans Awards each year, known as the best PhD paper, best student thesis and best outreach from the past year. The CML staff nominated students and colleagues and this year’s jury Helias Udo De Haes and Gjalt Huppes made the final decision.

On 28 November 2025, Leiden University and PLNT Leiden hosted “The Knowledge Orchard” - an event aimed at starting up/ enhancing interdisciplinary cooperation between academics at Leiden University, and improving collaboration between Leiden researchers and external partners in research and educatio…

Salma Balazadeh, Víctor Carrión, and Jos Raaijmakers, biologists at the Institute of Biology Leiden (IBL), have successfully applied for an NWO grant and got awarded 730.000 euros. The board of NWO Domain Applied and Engineering Sciences awarded funding for their project within the Open Technology Programme…

Tim van de Meerendonk explores how farmers, insurance advisors and local politicians in India try to make sense of insurance figures through their moral convictions.

Five thousand years before the common era (BCE), Proto-Indo-European, the mother of many languages that are spoken today in Europe, Central Asia and South Asia, originated in eastern Europe. PhD candidate Axel Palmér has combined a 175-year-old hypothesis with new techniques to demonstrate how descendants…

If Europeans eat less meat and dairy, this will have major consequences for farmers. New research shows that many barns and machines could lose their value. With the right policies, these losses can be limited. This is shown by research from Leiden, Oxford and Vienna.

Political scientist Tim Mickler (Leiden University) receives a grant from The Dutch Research Council (NWO) for his quantitative research into post-parliamentary positions of parliamentarians. The grant is a result of the SGW Open Competition XS, with the aim of stimulating innovative scientific rese…

Gilles van Wezel of the Institute of Biology Leiden will lead a European consortium to search for new medicines and disease-suppressive microbes while preserving biodiversity. The consortium will explore the largely unknown potential of marine microorganisms.

The project MiCRop receives 20.3 million euros from the Gravitation programme of the Dutch Research Council (NWO). MiCRop will unravel the microbial community around crops. This knowledge will help to develop more sustainable crops that require fewer fertilizers and pesticides. Leiden professors Jos…

Michael Ignatieff, Canadian author, university professor and former politician, has been appointed Cleveringa Professor for the 2013-2014 academic year at Leiden University, the Netherlands. Professor Ignatieff will deliver the Cleveringa lecture on 26 November 2013.

Two Leiden researchers have been awarded a Consolidator Grant by the European Research Council (ERC). This grant of up to 2 million euros will enable them to continue and develop their research.

Strengthening the cooperation between Moroccan, other African, and Dutch institutions for higher education. This was the focus of a two-day seminar at NIMAR (Netherlands Institute Morocco) in Rabat in July, during which scholars of the African Studies Centre Leiden interacted with colleagues from NIMAR…

A radical reduction in the amount of meat, dairy and other products sourced from animals is possible in the coming decades, as people turn to an increasing variety of alternatives. This would unlock vast amounts of land that we could use to produce energy and remove carbon from the atmosphere. Leiden…

The Cyber Security lecturers are scholars and lecturers of Leiden University, Delft University of Technology and The Hague University of Applied Sciences.

Plants are vital resources throughout human history, but we know little about how they were used and valued prior to agriculture. Sandrine Gallois, an ethnoecologist working in the ERC-funded HARVEST project, has developed an interdisciplinary approach, combining anthropology and botany to explore how…

Disclaimer: Manuscripts related to the Resilience Center are for academic purposes only and are not intended for mass distribution or copying. Please refer to applicable laws for fair use, including copyright holders' restrictions on publications.

They were eagerly awaited: four letters from five ministers that should provide clarity on how to get us out of the nitrogen crisis. Nitrogen expert Jan Willem Erisman explains the plans. And says whether they will get us out of the nitrogen crisis.

By reforming agriculture in targeted areas, we can protect the Natura 2000 areas much more effectively. This is what Jan Willem Erisman of Leiden University and Ton Brouwer of Gispoint consultancy write in a new report. They have created a special, nitrogen map of the Netherlands that shows the areas…

The Netherlands is embroiled in a complex nitrogen crisis. Berent Baris wants to use his NitroGenius game to demonstrate the complexity of this crisis.

It was while wearing clogs at a Dutch theme park in Japan that Cindy Heijdra really got to know Japan. Over 20 years later, she is studying again: to be a primary school teacher.

‘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.’

A team of researchers at the Institute of Biology Leiden, in collaboration with scientists from Utrecht University, has discovered a novel approach to improve the production of antibiotics and enzymes in the soil bacteria Streptomycetes.

Overview of all dissertations published by PhD candidates from CML.

The research in the framework of the Jean Monnet Chair is focused on the following points.

LUCIS affiliated members are researchers outside Leiden University who are actively involved in the study of Islam and/or Muslim societies and who regularly participate in LUCIS activities. LUCIS affiliate membership offers possibilities to cooperate with LUCIS as well as network opportunities. Contact…

AI has huge societal and economic potential and is widely used. But it also brings challenges: how do we combine human values with AI, how do we make AI more transparent and understandable, and what can AI and human cognition learn from each other, for example about language learning?

Would you like to create an extra challenge for yourself? Leiden University gives you plenty of room to do so.

The new Dutch government must act quickly to take rapid, far-reaching measures in three specific regions to tackle nitrogen emissions. This will create the space for a long-term strategy to deal with other urgent problems and the knot of obligations that the state will need to untangle. These are the…

Researchers from the Institute of Environmental Sciences of Leiden University started crowdfunding to raise 15.000 euro to build a laboratory in nature: The Living Lab. This is necessary to test the effects of chemical compounds in a natural situation.

From 9 September onwards, Leiden scientists, citizens and farmers will jointly investigate how to sustainably manage peat meadowland. In ten years' time, they hope to have learned how to promote biodiversity and simultaneously reduce nitrogen and CO2 emissions, among other things. The research will…

The Vrouw Vennepolder near Oud Ade has been transformed into the Polderlab. Scientists and students from Leiden University, together with farmers and citizens, investigate how to manage peatland in a sustainable and profitable manner. A great opportunity for students to experience how scientific knowledge…

‘It is recommended that the State assumes sovereign responsibilities to protect life, liberty and property of its citizens in the domain of cyberspace, despite the international character of cyberspace,’ says Roy van Keulen. He will defend his dissertation on digital force on Wednesday 9 May 2018.

More efficient use of phosphorus fertilisers would make it possible to meet food demand in 2050, without using more of the world’s land for agriculture. This is what environmental scientists José Mogollón and colleagues have discovered by working out various future scenarios for food production and…

Chemical substances and nanomaterials are processed on a massive scale in diverse products, while their risks have not been properly assessed. Time and again synthesised substances have been shown to pollute the environment more than lab tests predicted. This is the warning given by Professor of Ecotoxicology…

Bioenergy with carbon capture and storage (BECCS) is a promising method for removing carbon dioxide (CO2) from the atmosphere and simultaneously generating energy. Yet this method is controversial, as it may require a great deal of land and water. Researchers at Leiden University have now proposed a…

LI Weiya from the University of Science and Technology of China, Hefei City, has been awarded a general scholarship by the CSC (China Scholarship Council) to carry out his PhD research at the Laboratory for Material Culture Studies.

Dr. Irina Herzon has given a lecture about

During the Dutch Mathematical Congress, Joost Batenburg has been awarded the Philips Mathematics Prize for PhD students.

Back in 2016, Genner Llanes-Ortiz joined the Faculty of Archaeology as an assistant professor in the Heritage of Indigenous Peoples research group. Genner works on the crossroads of anthropology, archaeology, heritage, and human rights. ‘I am investigating how contemporary indigenous peoples are re-connecting…

On average, Dutch breeding birds have become more numerous in the period 1980-2010. The common species have even done better than birds in other European countries. Farmland birds are an exception: they declined sharply both in the Netherlands and elsewhere in Europe.

Changes to halt further biodiversity loss are more urgent than ever and feasible, says IPBES, the United Nations biodiversity panel. In two reports released this week, the panel calls on governments worldwide to develop coherent policies that address biodiversity, climate change, water, food and health.…

The African Studies Centre Leiden’s Research Programme for 2025-2029 is called ‘African Trajectories: Past Dependencies and New Directions’. Building on its former programme, it extends the recognition of Africa’s pivotal role in world affairs. The continent’s global significance has become increasingly…