PhD defence

On 5 October, mediator Johan Remkes presented his report on the nitrogen crisis and what he thinks is the best way forward. Leiden University professor and nitrogen expert Jan Willem Erisman responds to Remkes’s recommendations. ‘It’s a step in the right direction.’

Nitrogen professor Jan Willem Erisman and Ton Brouwer have released a new report presenting scenarios to actually meet the agricultural nitrogen targets for 2030. Their message to politicians in The Hague: ‘Look at this approach — it is possible.’

The Food citizens? team has included two post-docs, three Ph.D. candidates and two research assistants working with the Principal Investigator. The Winter School involved nine Masters and Ph.D. candidates from the universities of Bologna, Gothenburg, Kaunas, Leiden, Louvain, Tromsø, Turin and Utrech…

The research within the Food research programme at CML focuses on a transition towards sustainable food production and consumption systems. We investigate from a very small to a very large scale, at a local, national or international level. We do so by researching for example molecular tools, food systems,…

NL-BioImaging AM is a distributed research infrastructure aimed at promoting progress in the most cutting edge microscopy technologies and providing open access to these technologies to a broad community of academic and industrial users. All Netherlands bio(medical) microscopy centers participate.

Our students and public and private organisations have much to offer each other. To connect students with organisations, FGGA facilitates this through an internship and traineeship platform: TRAIL.

Professor of Ecotoxicology Martina Vijver and lecturer Maarten Schrama are the founders and managers of the Living Lab. As well as these two researchers, a number of other ecologists and biologists are involved in the research at the Lab.

How were the Russians, under early modern conditions, able to incorporate this distant, undeveloped and, because frequent nomadic attacks, dangerous territory? And what role did the Kolyvan-Voskresensk plants play in this process?

Update : August 2017 Dr Willem van Haarlem

Microbes influence and respond to other organisms. This theme explores the dynamic relationships within plant and animal microbiomes, and the immune responses that govern host defense. Using model systems such as zebrafish, insects, and plants, we investigate fundamental processes and engineer microbes…

On the basis of the characteristic aspects of a picture, certain computers can tell us what the picture is showing. They can learn this in the same way that young children are able to learn to recognize images. Further improving these techniques opens the way to a whole range of new applications. Biology…

Majuka Tanabe defended her thesis on 17 June 2015

This project uses archaeological, literary and epigraphic evidence to investigate urban development in Roman-period North Africa, compiling this in a GIS-linked database in order to analyse the development of urban settlement spatially over time.

On the basis of the characteristic aspects of a picture, certain computers can tell us what the picture is showing. They can learn this in the same way that young children are able to learn to recognize images. Further improving these techniques opens the way to a whole range of new applications. Biology…

Urban, Food, Water, Biodiversity, Resources and Energy: these are the main research topics of the Institute of Environmental Sciences. We always strive to be a global leader in our field. And make a real impact with both our research programmes.

Between foraging and farming: an extended broad spectrum of papers presented to Leendert Louwe Kooijmans.

Browse the latest articles and issues of Inter-Section.

The researchers in the World Archaeology department of the Faculty of Archaeology concentrate on a range of different periods and regions: from humanity’s origins to the Middle Ages and the modern age, and from Asia to South America.

Leiden University’s new ‘Europe Hub’ is an interdisciplinary platform that showcases the university’s research and teaching expertise and capacities on Europe’s societal and governance challenges.

Almost 100 billion tons of CO₂ could be pulled out of the atmosphere by the end of the century. That is, if high-income countries switch to a plant-based diet. The double carbon profit of returning farmland to its natural state would equal about 14 years’ worth of agricultural emissions, researchers…

Population growth, economic expansion and the associated land use caused an increase in the number of bird species facing extinction and a reduction in carbon storage worldwide. These are the findings of an international team of scientists, also from the Leiden University Institute of Environmental…

For the first time in the history of the Van den Berg prize, there are two winners: the ‘traditional’ one for the best thesis by a student in the Dutch bachelor’s programmes in Political Science, and, as of 2020, one for a graduate from the International Relations and Organisations (IRO) specialisation.…

Beatrice Penati is Assistant Professor of History at Nazarbayev University (Astana, Kazakhstan). Dr Penati will deliver a guest lecture on Monday, 10 October and a masterclass on Thursday, 13 October within the Central Asia Initiative at Leiden University.

On December 1st, Maria Vasile attended the annual meeting of Wallonia’s Mouvement d’Action Paysanne (MAP) (Peasant Action Movement). The members of the MAP gather on this particular day to celebrate St. Eloi, who is recognized as the saint patron of farmers and of the working class, more generally.…

Circular agriculture and more nature are important to reduce harmful emissions and to give a new impetus to biodiversity. But is that compatible with the Netherlands' position as an important exporter of food products? Professor of Conservation Biology Geert de Snoo believes it is, at least provided…

The Green Office wants to help start a community garden in the open patio space of the Schouwburgstraat buiding in the Hague.

The National Museum of Antiquities in Leiden features a small photo exhibition on Mark Driessen's fieldwork research project in Southern Jordan. In this small exhibition you will see a selection of nine photos, made in Udhruh. This ancient Jordanian settlement lies fifteen kilometres east of Petra,…

A plan for the future from green farmers.

Matthew Canfield (Assistant Professor, Van Vollenhoven Institute) and Danielle Chevalier (Assistant Professor Law & Society, Van Vollenhoven Institute) both received XS Grants from the NWO Open Competition SSH for their respective research projects. These grants are a maximum of €50,000 and enable…

Soil that is too wet, or too dry. Or with a lot or few nutrients. Due to climate change, the differences are becoming bigger, and plants must increasingly be able to adapt to survive. How do you make plants more stress-resistant? For this purpose, researchers from Leiden, along with other universities,…

The Netherlands must decrease its food imports dependency on foreign countries to be able to reduce the consequences of the corona crisis on its food supply. Dr. Brandon Zicha and Joes de Natris conclude that the solution to this is two-fold: major interventions in agricultural practices and a trustworthy…

Land van Ons, a cooperation that buys agricultural land for the restoration of biodiversity and landscape, and Leiden University join forces. Together, they will investigate over a longer period of time which agricultural management leads to the best restoration of biodiversity. The research will start…

Is polder rice a feasible circular alternative for cows on peatland? A pilot experiment started this week. On May 22nd, researchers from Leiden University and Wageningen University & Research (WUR) planted roughly 3,000 rice plants on the Polderlab near Leiden. The researchers want to test rice as a…

How can we best deal with the current problems caused by the human impact on the nitrogen cycle? How do we make the transition to a sustainable society? As of 1 September, nitrogen expert Jan Willem Erisman will be working on these questions at Leiden University: he will exchange the Louis Bolk Institute…

Thursday February 2nd, 2017 Prof. dr. Janne Bengtsson from Swedish University of Agricultural Sciences in Uppsala has given a lecture called:

The United Nations fall short in their recently published guide to address hunger without surpassing the 1.5-degree climate threshold. This initial version is a significant step, according to a group of researchers including those of Leiden University. However, they miss an essential topic: reducing…

How does the soil we grow our vegetables in, affects the health of our gut? And does a healthy soil gives crops a better quality and taste? These are some of the questions Soil ecologist Emilia Hannula and a big consortium will work on. With an NWO-KIC grant of 1.8 million, CML, IBL, FGGA, the LUMC,…

PhD defence

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…

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.

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…

On 28 November 2025, Leiden University and PLNT Leiden will host “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 educa…

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.

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…

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…

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…

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…