Liveable Planet, the Leiden interdisciplinary research programme on sustainability, has a full presence at the LUGO Sustainability Day on Tuesday 9 May. Professor Jan Willem Erisman will deliver the keynote lecture. You can also ask questions about sustainability research and interdisciplinary collaboration…

What can you do about sustainability in your immediate living environment? On Thursday afternoon, April 14, the Museum Volkenkunde in Leiden was filled with policymakers, researchers, entrepreneurs, citizens, students, and even the mayor of Leiden. Leiden University and the Association of Dutch Municipalities…

With the retirement of Wil Roebroeks, Gerrit Dusseldorp will take his place as the archaeological representative in the Liveable Planet Interdisciplinary Programme as an Associate Professor. An expert on the behaviour of early human hunter-gatherers, he will look at the interaction between humans and…

Research

To honour the work of its longstanding chair Nick Ryan, CAA International provides the annual Nick Ryan Bursary Award. The Nick Ryan Bursary Award winner is chosen from each year’s student paper presenters. The award goes towards the costs of attending the CAA Conference the following year, up to a…

It is late June, and on a windy meadow north of Leiden known as the Vrouw Vennepolder a group of archaeology students just hit the last ice age. Considering this involves manually pushing a ground core to a depth of 10 meters, this is no small feat. Even so, the taking of ground samples in this, at…

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.

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.

We hebben 6 van de 9 grenzen overschreden die bepalen of menselijk leven in de komende generaties nog mogelijk is op aarde. Kunnen we het tij nog keren?

A huge shiny aluminium object stands in the middle of the Polderlab in Oud Ade. Are the researchers trying to make contact with extraterrestrial life? Certainly not; they are using the ’Moon landers’ to measure whether innovative forms of agriculture reduce greenhouse gas emissions. Fleur van Duin works…

A consortium including economists, psychologists and public administration scholars from Leiden University will study public acceptance of the hydrogen transition in the Netherlands. They will look at the labour market impact, public perceptions of hydrogen and businesses’ willingness to invest.

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. The breakthrough takes…

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…

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

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…

It’s Circular Economy Week, from 1 to 6 February. But what is it that makes an economy circular? And just how circular is our university? René Kleijn, lecturer on the honours class Circular Economy: from challenge to opportunity, explains.

Leiden University and the Municipality of The Hague signed a collaboration agreement on sustainability on 1 November. Their main goals are to build a network, share knowledge and explore the possibilities of a Climate Centre for the people of The Hague.

How do atoms and molecules end up forming planets? That's what astrochemist Julia Santos studied during her PhD. She discovered the dominant process behind the formation of methanol in space – a finding that surprised the entire field.

In the fight for a liveable planet, we desperately need a fairer distribution of wealth and equal rights for all, argues anthropology professor Marja Spierenburg. ‘That will also generate broad-based support for sustainable development.’

The Vrouw Vennepolder near Oud Ade has been transformed into the Polderlab. Scientists and students from Leiden University, together with farmers and citizens, investigate how to manage peatland in a sustainable and profitable manner. A great opportunity for students to experience how scientific knowledge…

A consortium led by Eefje Cuppen, Professor Governance of Sustainability at the Institute of Public Administration, has been granted NWO funding for a research project looking into the social, societal, and technical aspects of the energy transition.

‘The climate crisis is the greatest threat we face,’ says Leiden University environmental scientist Paul Behrens. ‘And yet, there is hope. In the near future, I think we will wonder why we didn’t make these changes earlier.’

Sustainability challenges don’t just call for environmental scientists – they require expertise from many academic fields. Thijs Bosker and Paul Behrens have made it easier for university lecturers to integrate sustainability into their courses. Their initiative, Local Actions, offers ready-made teaching…

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.

Each year a staggering 18 billion chickens, turkeys, pigs, sheep, goats, and cows either die or are killed without making it onto someone's plate. Environmental scientists Juliane Klaura, Laura Scherer, and Gerard Breeman were the first to calculate this number on a global scale. 'Reducing these numbers…

The discovery of a planet far too large for its sun defies models about the formation of solar systems and planets. In a paper in Science, researchers, including Yamila Miguel of Leiden Observatory, report the discovery of a planet more than 13 times heavier than Earth orbiting the ultracool dwarf star…

Lecture

Could water be present in planet-forming disks before the formation of rocky planets? The James Webb Space Telescope may have found evidence for that. Webb has for the first time observed water in the inner disc around young star where at greater distance, giant planets have already formed. The research…

The Plants & Planets exhibition brings two worlds together in a dazzling mix of science, nature and art. It opens at Old Observatory Leiden and Hortus botanicus on 7 February.

An international team of astronomers led by Ardjan Sturm of the Observatory has made the first two-dimensional inventory of ice in a planet-forming disk of dust and gas surrounding a young star. The researches, including Melissa McClure, used the James Webb Space Telescope and publish their findings…

A team of international researchers led by Tomas Stolker in the Netherlands has imaged a young gas giant exoplanet near a 12-million-year-old star. The planet is orbiting a star at which planet formation has finished, while the same-aged companion star still has a planet-forming disk. The researchers…

Green spaces boost mental health—especially in busy cities. A new study from Leiden and Stanford University reveals how nature benefits urban well-being and offers low-cost ways to make city life healthier for everyone.

On Saturday, February 11, 2023, at the Dies for Alumni event, archaeology alumni Everest Gromoll was awarded the LUF Thesis Prize. His thesis, titled ‘Neolithizers by Nurture’, explores parallels between the only two comparable climatic shifts in the history of modern humans: that of the one 12,000…

Using the James Webb Space Telescope, an international team of researchers, including Leiden Professor of Molecular Astrophysics Ewine van Dishoeck, has discovered a palette of hydrocarbons in a planet-forming disc around a young, low-mass star. The results confirm that discs around very lightweight…

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.’

Different groups of hominins probably learned from one another much earlier than was previously thought, and that knowledge was also distributed much further. A study by archaeologists at Leiden University on the use of fire shows that 400,000 years ago knowledge and skills must already have been exchanged…

In supermarkets, consumers are drowning in a sea of sustainability labels. Confusing for them, but also farmers can't see the forest for the trees. Obtaining these labels demands an enormous amount of time and effort. Berent Baris is investigating ways to simplify this process, benefiting both farmers…

Leiden students working to solve a sustainability problem at the request of an external party: that is the Sustainability Challenge. During a recent symposium, 28 groups of four to five students unveiled their solutions. The commisioners expressed great enthusiasm.

Buurtlab 070 is a new Leiden University project in which residents, researchers and students from The Hague work together on climate, sustainability and biodiversity solutions. What do they expect of the lab?

Although there is considerable evidence that nature in the city is beneficial to both people and animals, we still do not have an overall picture of those benefits. To rectify that, a Leiden PhD candidate and a student – armed with a cargo bike – are using The Hague as a life-size laboratory.

Debate

Planets existing in other solar systems contain invaluable information about the origin of planets and life. PhD candidate Yapeng Zhang has studied their atmospheres by looking at their smallest parts: isotopes. With her research she hopes to discover what makes our own solar system unique.

Conference, Symposium

Aline Vidotto has been appointed professor of Stellar and Planetary Astrophysics at the Observatory from 1 February. Vidotto has been with the university for 3.5 years and for her, the appointment is ‘a milestone in her career.’

Large pairs of planets thought to orbit each other without a star, do not exist after all. That conclude Leiden researchers, after extensive computer modelling and simulations. What the double dots seen by the James Webb Space Telescope are, remains a mystery.