Master’s students in Industrial Ecology and Governance of Sustainability have helped answer organisations’ questions about sustainability

In September 2025 Leiden University hosted a greatly successful academic conference

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…

With the opening of Wijnhaven, Leiden University now has three locations in The Hague. Photographer Nicole Romijn recorded the construction process of the former ministry building from start to finish. The result can be viewed at the photo exhibition on the Wijnhaven Building in the Old University Library…

How often do you consider the impact of your choices? 10 October is Sustainability Day: a good time to introduce the new bachelor's programme Science for Sustainable Societies.

To date it has proved very difficult to convert the promises of the miracle material graphene into practical applications. Amedeo Bellunato, PhD candidate at the Leiden Institute of Chemistry, has developed a method of cutting graphene into smaller fragments using a diamond knife. He can then construct…

Leiden University is working on sustainability and should give its efforts more publicity. This is the conclusion of Industrial Ecology master’s students who investigated the extent to which Leiden University is green and sustainable.

Boudewijn Röell's Olympic medal, an ancient skiff and photo's of memorable rituals. Asopos de Vliet - Princess Beatrix was a member - is celebrating its 55th anniversary with an exhibition in the Oude UB, from 1 November to 26 January.

Ammonia has been feeding the world for decades as a fertiliser and is now rapidly emerging as a carbon free fuel for shipping and industry. But if we focus only on CO₂ emissions, we risk creating new nitrogen problems, warns nitrogen expert Jan Willem Erisman in the journal One Earth.

Lecture, NGL lecture

Onderzoekers van het Instituut Pedagogische Wetenschappen en de afdeling Jeugdrecht gaan samenwerken in 2 nieuwe onderzoeken: onderzoek naar het terugplaatsingen van kinderen na uithuisplaatsing en draagmoederschappen in Nederland.

Children who come into contact with the police are not destined to become long-term offenders. This appears from research conducted by Babette van Hazebroek, who defends her dissertation on 30 September 2021.

Siemens recently took over the Leiden software company Culgi, founded by professor and inventor J.G.E.M. (Hans) Fraaije. We spoke to him about the algorithm that made him successful, the role of a university in our society and his ambitions at Siemens. ‘I was looking for Siemens, and they were looking…

The IBL has four Divisions: Animal Sciences, Plant Sciences, Microbial Sciences and Science Communication and Society.

Una Europa launches regular seed funding calls. Leiden University and other Una Europa partners also often offer funding for projects involving Una Europa universities.

Lecture, Studium Generale

At first glance, archaeology seems like a job that is hard to take home. Nothing could be further from the truth though! Our archaeologists are currently developing new dating methods, are looking for lost cities in their living rooms, and perform daring acts of experimental archaeology!

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…

What is the environmental impact of the fish on our plates? And is an electric car really more sustainable when we include the generation of electricity? Jeroen Guinée maps the environmental impact of products and technologies. He analyses them from raw material to waste disposal. He was appointed Professor…

Playing with tiny building blocks might sound like child’s play, but Vera Meester knows better. On June 7 she will defend her thesis on colloids: micro particles with which you can form larger structures. Meester developed a method to make unusable structures usable.

Steeds drukker is het in populaire banen rond de aarde voor ruimtevaart. Niet alleen met satellieten, vooral met meer afval, wat onveilig is. Zhuang Tian promoveert op de juridische kant van afgedankte ruimte-apparaten. Wie troep veroorzaakt, moet het weer opruimen.

In the MS Cognitietour, psychologists and neuroscientists from Leiden University discuss the latest scientific knowledge with MS patients and their loved ones. This leads to insights: 'One lady told how much stress she felt from all those caregivers around her bed.'

Environmental researcher Martina Vijver is over the moon with her ERC Consolidator Grant. This prestigious grant is recognition, she says, of the study of the behaviour and possible toxicity of new nanomaterials in ecosystems.

Students who also want to develop their artistic talents can take a year-long art class – Practicum Artium – at the Royal Academy of Art in The Hague. ‘I can express my creativity and am learning to approach subjects in a visual way.’

Leiden Law Cast is a podcast made by Leiden Law School, Leiden University, for everyone who wants to learn more about current legal issues.

PhD candidate Jianhong Zhou aimed to better understand whether and how plant species adapt to environmental changes. She developed two databases that she used to analyze how easily or difficultly plants adapt to changing conditions. Zhou defended her PhD thesis on 4 September.

International bachelor’s and master’s students started the OWL on Monday morning. During this introduction week they get to know their new university, city and each other.

One and half years ago, Lewis Borck exchanged the arid and hot Southwest of the USA for the Netherlands. While an expert in Ancestral Pueblo and Hohokam archaeology, he switched to the Caribbean as a researcher in the NEXUS 1492 project. “Theories and methods brought me in first.”

Elephant toothpaste, a trip among the stars or a lecture on mathematical juggling: on Sunday 8 October 2023, the Faculty of Science opened its doors for the third edition of the Leiden Science Family Day. A programme jam-packed with workshops, demonstrations, lectures and peeks behind the scenes for…

Bringing Dutch and international students together. One way to do that is by playing Archery Attack, archaeology student Timothy Stikkelorum suggested. On 13 November, he and his team, a committee from the Terra study association, won the Van Bergen Prize with their idea.

Human cells are protecting their proteins from unfolding and aggregating. That's what biophysicist Alireza Mashaghi and his team discovered after seven years of in-depth research into the folding mechanisms of proteins. With an unprecedented approach, the team was able to study the folding of a single…

Tuesday was the opening session of the LDE Bachelor Honours Programme Sustainability. Lecturers introduced themselves, students got to know each other and it was revealed what they will do to contribute to a more sustainable world in the coming months.

The Sustainability Prize of the Leiden University Green Office and the Local Chamber of Associations has been won this year by student association Catena. In the shadow of the corona pandemic, Catena worked exceptionally hard to improve sustainability.

In some university restaurants and cafés, you can already order them and, come January, you can enjoy them everywhere: the Pure products. Sustainable, healthy and/or vegetarian. The beautiful lime green, also the colour of the plates and bowls, is the vibrant symbol of these products. And Pure is even…

The world’s population is expected to rise to 9 billion people in 2050. At the same time, climate change urges us to dramatically reduce our use of resources. Does the transition to a circular economy offer us a way out, and if so, how? Master Honours Class’ students are looking into this issue: ‘Change…

Today marks the launch of the LDE Bachelor Honours Programme Sustainability. Students from Leiden University, TU Delft and Erasmus University will work together on concrete sustainability issues of organisations. Interest in the new programme turned out to be overwhelming. Two lecturers involved share…

From underground heat exchangers at the Bio Science Park to drinking taps to replace water coolers. With its new environmental policy plan, Leiden University will become greener in the coming years.

What is the relationship between humans and nature like? And how can we use it to tackle climate problems? In the Master Honours Class ‘Planet in Peril’, students approach climate issues from the perspective of the humanities. ‘Things are not always as one-sided as they seem.’

Fascinated by science since high school, Alireza Mashaghi Tabari is driven to explore new ways of thinking in medicine. With a strong academic network, he educates students and gives public lectures. For his research at LACDR, he won the C.J. Kok Public Award 2018, making him the Faculty of Science's…

De Faculteit Archeologie bestaat dit jaar 25 jaar. Ter ere van dit jubileum opende de faculteit op 1 maart zijn deuren voor het brede publiek.

What effect did the lockdown have on young people? Leiden researchers started a study of this in the first year of the covid pandemic. They discovered an impact on the development of the brain areas involved in social behaviour. The researchers published their discovery in Scientific Reports at Nat…

Industrial ecologists Stefano Cucurachi and Flora Siebler are part of the new consortium PROGENY, which received 3.6 million euros from the European Commission. PROGENY is an exciting project that will study the possibilities of soap films for innovations, such as ultra-thin screens.

External PhD candidate Liselore Tissen (Leiden University/Delft University of Technology) has been blogging on the Faces of Science website since March about her daily work as a researcher. ‘Academia is anything but stuffy.’

The electrochemical reduction of a group of organic compounds on platinum is strongly dependent on the arrangement of the atoms in the platinum surface. Christoph Bondue, postdoc in Marc Koper's group, published this in Nature Catalysis on 4 March. The reduction of such compounds is an important process…

As a lecturer of a block 4 course, osteoarchaeologist Dr Rachel Schats is preparing to give her education remotely. For this she uses Kaltura, Leiden University’s video platform. While she is new to remote teaching, like most of the University’s lecturers, she already has some tips and tricks based…

Alumnus Rennie Roos lives and works in Indonesia. What took him there, what does he do there and what inspires him?

What does the University mean for The Hague? And what are researchers and students learning from the city and its residents? The Hague city councillors visited Campus The Hague on 27 September and spoke to administrators and researchers. ‘From Schilderswijk to Benoordenhout: we are a university for…

Literature – and films and social media too – helps us understand ourselves and society. That makes literary studies an eternally modern discipline, especially if you dare to combine it with other disciplines, says Nidesh Lawtoo.

From bedtime stories about mathematics to podcasts about microplastics and games on weeds: master students from the Science Communication & Society track presented the real-life products they developed during their final presentations on 20 December. Many of the products are already implemented by c…

Are you curious about how the human skeleton works? Discover this and more on 3 October in Leiden and on 4 October in The Hague.