How do you compare the living environment of Dutch dairy cows with that of Masai cattle in East Africa? And how can we reverse biodiversity loss? These questions are central to CurveBend, an international research consortium in which ecologist Michiel Veldhuis plays a key role.

LUC students research the Geul river’s restoration, combining sediment studies, biodiversity assessments, and policy insights for global environmental challenges

Researchers from Leiden University, McMaster University and Public Health Ontario are calling on colleagues to track down archival specimens of mosquitoes from museums and other collections and to examine them with modern methods. This will tell them more about malaria transmission.

The Greater Angkor Region in contemporary Cambodia was dramatically more urbanized in the 13th century than previously thought, and home to 700.000 to 900.000 people. These discoveries were made by a research team led by Sarah Klassen. Their findings are published in Science Advances.

To what extent can global issues be solved by multistakeholder collaboration, a relatively new type of organisation? Jan Aart Scholte, the coordinator of the Global Transformations and Governance Challenges (GTGC) interdisciplinary research programme, has received a Dutch Research Council (NWO) grant…

On Thursday 19 October, the Crisis and Security Management programme welcomed back six alumni for an alumni panel.

The Executive Board is visiting the university’s institutes to find out what is going on. On 8 July 2025, it was the turn of the Institute of Environmental Sciences (CML), one of the fastest-growing institutes at Leiden University. ‘Our main aim is to preserve our planet for future generations.’

Through various initiatives, Leiden University is trying to make people aware of the importance of biodiversity: the cultivation of a wide variety of micro-organisms, animals and plant species. This is important because in the Netherlands biodiversity has declined from about 40 percent in 1900 to about…

Fewer CO2 emissions, less airborne viral transmission, and a more sustainable form of food production: seven consortia of researchers and societal partners will put a budget of 32 million euros towards developing technological innovations. Important Leiden research on circular electronics by Prof. Dr.…

PhD student and research journalist Sebastiaan Grosscurt won a Tegel in May. In the data category, Grosscurt and his colleagues won the prestigious Dutch journalism award. 'For me, ecological research and journalism are two ways of achieving the same thing.'

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.

By Royal Decree, Mirjam Sombroek van Doorm was appointed as a member of the Health Council of the Netherlands as of 1 January 2024. She has joined the standing committee for Ethics and Law as well as the temporary Brain Injury through Sports Committee. The Health Council of the Netherlands is an independent…

The Sustainability Monitor 2024 reveals that Leiden University has again taken significant steps to become a more sustainable and future-proof university. Since 1990, its carbon emissions have decreased by 50 per cent and, compared with 2019, its natural gas consumption has dropped by 32 per cent. Its…

Mining for natural resources harms the environment. But we desperately need them, for both the development of countries and the transition to a sustainable energy system. Professor of Sustainable Resource Use Ester van der Voet researches how we can reduce the environmental impact of natural resources…

After an extensive content analysis of the coalition agreement, a sharp fall can be seen in the focus on education & culture, science & technology and defence. This is the conclusion of university public administration professors Gerard Breeman and Arco Timmermans. They compared the content with all…

Roel Wouters (24), a biology student at Leiden University, is a finalist in the election for UN youth delegate for Biodiversity and Food. The digital polls open for a week on Friday 22 October. Under-30s can vote for Roel at www.stemroel.nl.

Isaac McKean Scarborough has been working at the Institute for History as a lecturer since September 2021. Below he introduces himself!

On August 30, the online platform Historical Maps of Southeast Asia was launched. The platform provides access to over 1,400 digitised maps of Southeast Asia from the collections of the National Library Board Singapore (307 maps), Beinecke Rare Book and Manuscript Library - Yale University (150 maps),…

The year 2023 saw the earthquake in Turkey and Syria, the Wagner Group rebellion and wildfires and floods as all the weather records were smashed. Our most-read stories were about the climate crisis and the elections: here’s the list.

From a new generation of antibiotics and more-effective vaccines to a map of dark matter and new light on Hindu traditions. Four researchers from Leiden University have received a prestigious €2.5m ERC Advanced Grant to develop their research.

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.

The starting point of human-induced landscape changes has been under permanent debate. It is widely accepted that the emergence of agriculture strongly increased human impact on their environments. However, foragers can and do actively transform land cover and ecosystems. Ethnographic observations,…

Micro- and nanoplastics cause stress to crops such as lettuce and carrots, PhD candidate Laura Julia Zantis found. This can lead to reduced growth and a lower nutritional value. Biodegradable plastics have this effect too, likely because of chemicals they release during degradation.

Speculation about alien life, a new nitrogen map, AI as a thesis supervisor, groundbreaking telescopes and multi-million-euro investments to combat antimicrobial resistance – the diversity of these topics shows that our readers are just as broadly interested as our researchers. Discover the most-read…

Violent conflicts and civil wars in Chad impede most rural households' access to food security, agricultural activities and access to essential services such as health care. In her dissertation, Nakar Djindil Syntyche denounces this issue. She obtained her PhD on 24 November.

Symposium

2021 was an eventful year once again for the Faculty of Governance and Global Affairs (FGGA). Hybrid, working from home, online education, on-campus education, face masks, self-tests, keeping distance, quarantine and the coronavirus. Words that have now become a standard part of our vocabulary when…

Eighteen researchers from Leiden University have been awarded a Veni grant by the Dutch Research Council (NWO). This grant gives promising young researchers the opportunity to develop their ideas for a period of three years.

From medicines from snake venom to supercrops and the origin of words. Thirteen researchers from Leiden University will receive Open Competition XS grants from the Dutch Research Council (NWO).

In his art, Rafael Martig shows how drastically human activity changes nature. Fieldwork during his studies reinforced this view. ‘On Ameland I found masses of meadow birds, but the greenery on the mainland was often a grass desert.

In collaboration with: Leiden University Institute for Area Studies, the Netherlands & Mar Chrysostom Chair, Mahatma Gandhi University, India

A collaboration between linguists, geographers and anthropologists aims to uncover how languages spread across South America over thousands of years. Associate Professor Rik van Gijn is responsible for the linguistic side of this NWO project.

Fancy seeing how your job is done at a university abroad? Project Managers Christina Schlüpen and Jeannette de Wolf from the Leiden Institute of Chemistry did just that. They both spent a week shadowing a European colleague: one in Bologna and the other in Berlin. This was through the Una Europe alliance,…

Most people think of waste as something dirty that needs to be disposed of as soon as possible, but Olivia Yun-An Dung's dissertation aims to show that this does not always have to be the case. For this purpose, she focuses on Tzu Chi recycling in Taiwan. There, an army of elderly volunteers has been…

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…

Her father is a miller, so it’s hardly surprising that Esther van der Ent is also fascinated by windmills. Alongside her work at the Centre for Environmental Sciences (CML) and the Leiden-Delft-Erasmus alliance, Esther is now training to become a miller herself. ‘This craft mustn’t be lost,’ she say…

Imagine no one in the Netherlands would eat animal products anymore, what would happen? And would it contribute to more climate justice? That is the theoretical exercise that environmental scientist Jan Willem Erisman and landscape architect Berno Strootman are taking up. 'Sometimes you have to think…

The importance of science communication and cross-boundary collaboration, and the ‘mantra’ of diminishing social cohesion in society: these all came up at Leiden University’s 448th Dies Natalis. A panel discussion including Leiden’s mayor Lenferink, music and two honorary doctorates completed the special…

The new interdisciplinary bachelor's program in Science for Sustainable Societies starts in the 2025-2026 academic year.

Arbeidsuitbuiting van migranten wordt als een vorm van het strafrechtelijke delict mensenhandel beschouwd. De rechtspositie van de slachtoffers is mede daardoor ondergeschikt aan de strafrechtelijke procedure. Dat kan en moet anders, stelt Gerrie Lodder in haar proefschrift. Promotie op 21 april 202…

Between 6 and 9 June, you’ll be able to vote in the European elections. But what can you expect from these elections? What are the most important topics on the European agenda? And why should you even vote? Students from the European Law master’s specialisation explain.

It is often thought that immigration threatens the solidarity on which redistribution relies. But looking at the post-war period, PhD candidate Emily Anne Wolff finds that this is not the case.

Artificial intelligence (AI) is often portrayed as a technological saviour for addressing climate change. But there are risks associated with its use, observes Barrie Sander.

Eva Loeve (22), a fourth-year student of Cultural Anthropology, worked for five months at Centre for Research on Multinational Corporations (SOMO). At the end of May 2021, the report "Spinning Around Workers' Rights" about working conditions in spinning mills in South India was published, on which Eva…

Framing Poland through the lens of post-socialism, as is common in the social sciences, has become outdated. This label no longer captures the rapid changes that have taken place since the fall of the Iron Curtain. Ola Gracjasz's research shows that people are redefining their national identity, blending…

When do we define a piece of nature in the city as a park? And when is something a tree or shrub? It may seem obvious, but in scientific literature the definitions vary quite a bit. That makes comparisons difficult. Environmental scientist Joeri Morpurgo looked at the differences and designed a general…

Neanderthals were able to outwit straight-tusked elephants, the largest land mammals of the past few million years. Leiden professor Wil Roebroeks has published an article about this together with his German colleague Sabine Gaudzinski-Windheuser in the Science Advances journal.

With a self-converted red camper van, biologists and twin brothers Kevin and Marvin Groen go on a nature adventure in Eastern Europe. Together, they search for wild animals, beautiful nature and places to sport. From a long search for a bear in the Slovakian wilderness to the discovery that pelicans…