The Pavement Plants Citizen Science Project invites citizens to monitor plant species growing around their homes, neighborhoods, or towns. The goal is to collaboratively monitor urban flora, measuring and revealing the species richness and biodiversity of the urban ecosystem. We believe this will lead…

In our lives we often have little attention or appreciation for plants, let alone the ones we commonly call weeds. This inattention for plants has been described as plant blindness. The Stoepplantjes project aspires to decrease plant blindness by changing the image of weeds and using citizen science.…

At almost midway through, the “Stoeplanten” (Pavement Plants) citizen science project has been very successful. This research was initiated by Nienke Beets, who while working for the Science Communication and Society research group and Hortus Botanicus, gave her contribution to the Stoeplanten proje…

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…

How do we decide on the long-term future of children placed in care in a valid, reliable, traceable and transparent way – together with parents and young people?

The Leiden Institute for Brain and Cognition (LIBC) is a network that stimulates interdisciplinary exchange of knowledge and expertise on topics related to brain and cognition and focuses on science valorisation and outreach.

Cities need to become greener, more biodiverse, and climate-resilient. However, many organisms that are vital for the functioning of urban green spaces and the wellbeing of urban citizens remain largely unknown.

The Forensic Family and Youth Care Studies research group conducts innovative high-quality research aiming to gain knowledge about deviant developmental trajectories of vulnerable children, adolescents, and families, about how to prevent problematic development and how to intervene when necessary.

Social Science Matters is an online variant on London’s famous Speakers’ Corner – a platform for the researchers in the various disciplines in the Faculty of Social and Behavioural Sciences to react to the news. This soapbox gives our social scientists an opportunity to voice their opinions on current…

The Institute of Private Law is part of the Leiden Law School.

The Hortus botanicus Leiden connects science with the public. Through our research, we explore how people experience and appreciate nature while addressing key societal challenges.

Na gedwongen uithuisplaatsing gaan vier op de tien kinderen terug naar huis. Van deze kinderen wordt een op de vier opnieuw uit huis geplaatst. Bovendien komt de uithuisplaatsing vaak onverwachts. Dit blijkt uit Leids onderzoek in opdracht van het WODC.

Een minderheid van de uithuisgeplaatste kinderen keert terug naar hun ouders, blijkt uit onderzoek van Universiteit Leiden. Hoogleraar jeugdrecht Mariëlle Bruning sprak met verschillende nieuwsmedia: ‘Alles staat zo onder druk dat te weinig ingezet kan worden op intensieve hulp.’

The mission of our group is understanding how science communication works to improve the interaction between science and society. We believe better science communication can improve our society and engage many different groups with science, also improving science.

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The university is making its campuses future-proof with measures for climate adaptation and biodiversity. You can read in the Sustainability Implementation Agenda 2023–2026 how we harvest rainwater, limit heat stress and make more room for greenery.

The Hague is alive with nature – you just have to look

Leiden University and the Municipality of Leiden worked together on the development of the Schilperoort Park. This new public space is situated in the north-eastern part of the Leiden Bio Science Park. The park ambience is extended into the adjacent residential area, where former medical laboratories…

Grass, nettles, dandelions: we should banish them from our gardens, right? Wrong! Weeds can help cool, fertilise and increase biodiversity in your garden. In this episode of The University of the Netherlands, biologist Nienke Beets lists the advantages of more green in our villages and towns.

As we are working very hard to make our University more green, it is of upmost importance that you join us in our battle and start increasing the local biodiversity from your own house! Every bit will help, it is beneficial for you own mental health and most importantly it is fun! We have created this…

From researching plastic pollution to caring for injured wildlife, volunteers play a crucial role in conservation. But much of the valuable knowledge they gather remains unused.

Over the summer, students – and a few members of staff – at Leiden University sent in their best photos to the University’s ‘Summer in Leiden and The Hague’ photo competition. All these summer-inspired photos are now on display in the Summer in the City photo exhibition in the University’s central administration…

Professor Paul Keβler, prefect of the Leiden Hortus botanicus, holds the special chair Botanical gardens and botany of South-East Asia since 1 February 2017.

Great news! From Whit Monday at noon, the oldest botanical garden in the Netherlands will be open for visitors again. After twelve weeks of closure, visitors will be able to come and enjoy everything that grows and blossoms in the heart of Leiden's city center. In order to offer all visitors and staff…

How many species of plants, animals, fungi and moss live in the gardens surrounding the Oude UB at Rapenburg 70? On Tuesday May 20th, the Citizen Science Lab led an investigation in the front gardens and back courtyard of the Old UB at Rapenburg 70, together with 15 colleagues working in that buildi…

A new government, conflicts around the world and obviously a lot of science: these are the five stories about Leiden University that you enjoyed reading in 2024.

A new plant species was named after Paul Kessler, prefect of the Leiden Hortus botanicus. Kessler discovered the small tree, which is related to the kiwifruit, himself.

Is private law ready for the challenges of our time?

Leiden University will share impactful research and teaching with policymakers, businesses and the general public at the Impact Fair in Utrecht on Thursday 3, Friday 4 and Saturday 5 April. Visit our stand, meet over a hundred inspiring exhibitors.

Nienke Beets of the Leiden Hortus botanicus has won the brand new Joke 't Hart Prize for connecting nature and art. For the botanical garden in Leiden, she developed a series of colourful plant icons and an educational board game. On 20 May, the Dutch Association of Botanical Gardens (NVBT) unanimously…

Leiden University has taken eighth place in this year’s SustainaBul, the sustainability ranking for universities and universities of applied sciences in the Netherlands. It was in 18th place last year.

The Sustainability Research Cluster fosters dialogue and collaboration among anthropologists and sociologists researching aspects of socio-cultural, ecological, and economic sustainability in and affiliated with the Institute of Cultural Anthropology and Development Sociology. It also seeks to stimulate…

On Wednesday 4 September, Queen Máxima opened the renovated tropical greenhouse complex of the Leiden Hortus Botanicus, an event that attracted wide public interest. Thanks to this renovation, the greenhouses are even better equipped for scientific research.

2024 has been an eventful year, and this is reflected in our social media posts. An overview of the most liked, most shared or most impressive posts.

In the week of 22 May, a delegation of the Faculty of Science visited Indonesia to strengthen the cooperation with the Universitas Gadjah Mada, the Universitas Indonesia and the Kebun Raja (botanical garden) in Bogor. Furthermore, the delegation visited the faculty of Pharmacy of the Institut Teknologi…

The Global Strategy for Plant Conservation, a world-wide effort by the botanist and plant protection community, is making considerable progress in protecting plant diversity around the world, a new report says. The Hortus botanicus Leiden is one of the partners of the project.

Many of the challenges of our time are too complex to be resolved within the confines of a single discipline. Leiden University is a broad-based university where an incredible number of research fields converge. That makes us the ideal breeding ground for, and practitioners of, interdisciplinary research…

People are keen to make a contribution that will be valuable for scientific research. Many thousands are taking part in the Major Flu Survey. Leiden researcher Anne Land is publishing on this subject in the Journal of Science Communication.