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On Tuesday November 25, 2025, Prof. dr. Sarah Cramsey traveled with students from her masters seminar on “New Approached to the Holocaust in Central and Eastern Europe” taught at the History Institute to Amsterdam for a unique opportunity. There, Ms. Lotte Sophie Groenendijk, an alum of the History…

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Is polder rice a feasible circular alternative to cows on peat soil? In May, an experimental trial began, with researchers from Leiden University and Wageningen University & Research (WUR) planting around 3,000 rice plants at the Polderlab near Leiden. The researchers aimed to test rice as a middle…

The central research question focuses on identifying shifts in the urban social network in terms of private, semi-public and public space by means of mapping the spatial distributions of wells and cesspits in the town of Haarlem in the course of the pre-industrial period (1200-1800). Shifts may be indicative…

This book offers a linguistic anthropological analysis of multilingualism among the Matsigenka, Quechua, and Spanish languages on the coffee frontier of Southern Peru, set against the backdrop of economic transformation and deforestation in the world’s last great forest.

The soil ecosystem consists of the largest reservoir of biodiversity on Earth.

This project investigates the rich linguistic history of the crucial language groups in East Africa and includes a search for words that indicate earlier lost languages. These outcomes, combined with recent archaeological and genetic research, will contribute to a new understanding of East Africa’s…

Essays dedicated to Frans Wiggermann

Crises like climate change and loss of biodiversity pose serious challenges for public governance, from the local to the global scale. With the Centre for Governance of Sustainability we contribute to addressing these governance challenges. Our focus is on how policy processes and governance practices…

This thesis investigates how the assessment of circular economy (CE) at the macro-economic level can be facilitated and promoted⁠.

Climate adaptation strategies frequently include the sourcing of heritage, encompassing landscapes, built environments and cultural practices. However, effective climate change governance requires taking seriously the stakes of local communities and the power relations that structure heritage initia…

On this page the programme and sessions can be found. The programme will be updated regularly.

Archaeological and related essays on the Jordan Valley in honour of Gerrit van der Kooij on the occasion of his sixty-fifth birthday

This projects investigates spatial relations between soils and other resources and the urban layout of a classic Maya center in Campeche, Mexico.

The first comprehensive and authoritative history of work and labour in Africa; a key text for all working on African Studies and Labour History worldwide.

Cutting-edge technological innovation for businesses and consumers, enabled by top-tier research on space and the quantum world.

In cities, parks take the blame for mosquito problems. However, the real issue is usually a few streets away. Drains and standing rainwater create ideal breeding grounds for larvae. As a result, controlling adult mosquitoes in parks makes little sense, says environmental scientist Louie Krol in his…

An enormous number of monumental buildings, such as burial tombs, appeared in Mycenaean Greece after 1600 BC. Why did this urge to build come to an abrupt end 400 years later? Archaeologist Ann Brysbaert investigates the possible causes thanks to her ERC Consolidator Grant.

In zoos, at festivals and in a mobile lab at the market: everywhere, Mariska Kret tries to understand human and animal emotions with her distinctive behavioural research. Now she has received the Mercator Sapiens Stimulus of €1 million for her efforts.

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.

National Meat Free Week (Nationale Week Zonder Vlees, 7–13 March) is an initiative to reduce meat consumption. Assistant professor Paul Behrens is studying what impact a change in our food consumption would have on the world. What, according to him, are the main reasons to switch to a (mainly) plant-based…

This project intends to provide an integrated linguistic assessment of the hypothesised migration route of the Tocharians.

Biodiversity in the Netherlands is having a tough time. Professor of Natural Capital Koos Biesmeijer combines research with practical advice: from the greening of industrial parks to solutions inspired by hi-tech nature. Inaugural lecture 9 March.

In the summer of 2011, from June 14th until August 5th, the Laboratory for Human Osteoarchaeology conducted an excavation on the former cemetery of Middenbeemster in cooperation with archaeological company Hollandia. The cemetery, which is located next to the church of Middenbeemster can be dated between…

Management of Impacts on Biodiversity: What are the effects of light pollution from cities and bridges and noise pollution from passing vessels and nearby road traffic on migratory fish passage and spawning in rivers?

How are top-down directives translated and implemented at mission level in UN peacekeeping?

Arnold Tukker and Mingming Hu (CML) will look for urban resilience solutions in the Dutch-Chinese ReSURE2 project that received 1.1M euro.

Algae are not what immediately spring to mind when people think of threatened species. But even among algae there are species that have a difficult time, such as ‘Aegagropila linnaei’. In the magazine BioScience Christian Bödeker describes the worldwide decline of this species. He calls for the species…

The effects of sustainability projects on poorer, marginalised people should be considered at a much earlier stage. This is the opinion of Marja Spierenburg, Professor of Anthropology of Sustainable Development and Livelihood, who will give her inaugural lecture on 25 February.

Integrins play an essential role in multicellular life by connecting cells to the extracellular matrix.

Pathways of toxicity

Analysis of drug adversity

The Advisory Board is an external Advisory Council, to advice the Board of Directors of CML about general strategies, research and education activities and evaluation procedures (Dutch: visitatie).

Lets hit the water! Our students joined us on Saturday 30 August 2025 for a Stand Up Paddleboarding (SUP) and canal clean-up session on Leiden’s canals with Plastic Soup Surfer Merijn Tinga.

What is the optimal design of sandy solutions for sustainable climate change adaption, from an ecological, biophysical and societal point of view?

How and under what conditions Dutch primary school principals' managerial networking activities affect the performance of their school

Why does social anxiety increase in adolescence and how does it grow out of control in some adolescents?

Our team is involved in the translation and adaptation of several questionnaires, for research purposes. Information about each questionnaire is listed below.