At the largest scales, two ingredients dictate the distribution of matter in the Universe. The first is dark matter, acting as an invisible scaffolding held together by gravitational forces.

HomininSpace is an agent based modelling and simulation system in which fluctuating carrying capacity is the key attractor for hominin dispersal. A parameterized and spatially explicit reconstructed palaeo-environment models available energy in the form of secondary biomass using reconstructed climate…

On Tuesday 10 March 2015 - 10h Ernst Worrell, professor at the University of Utrecht with a chair on

The gas prices now exceed 300 euros per megawatt hour – a record. The transition from fossil (natural gas, coal, oil) to renewable energy is needed and soon. But how do you get a society (and its citizens) to switch to sustainable energy?

Decarbonizing the building stock is critical for realizing the climate-neutral target for the Netherlands.

A radical reduction in the amount of meat, dairy and other products sourced from animals is possible in the coming decades, as people turn to an increasing variety of alternatives. This would unlock vast amounts of land that we could use to produce energy and remove carbon from the atmosphere. Leiden…

Plants and their pollinators form complex interaction networks. Within these networks, species differ widely in the number of species they interact with.

Africa is seen as a potential leader in green hydrogen production for domestic consumption, export and greening industry. One key barrier to realising this potential is the mismatch of skills between those required by industry and the capability of local workforces.

CML-researcher Rene Kleijn has spoken about metals scarcity in relation to the energy transition in a new Dutch popular scientific TV show called

RAWCLIC’s main goal is to develop knowledge on the future raw materials (RMs) demand, supply and associated environmental impacts induced by the energy and digital transitions in the EU, and to support fact-based industry- and policy- decision-making enabling these transitions.

In this thesis, we consider various (electro)chemical phenomena at surfaces and nanoparticles and their underlying atomistic processes, which we studied using first-principles methods such as density functional theory.

The focus of the dissertation

Metal production is not only energy-intensive and a major source of greenhouse gas (GHG) emissions, but is also associated with other impacts affecting human health and ecosystems.

Promotor: Jelle S. Kaastra Co-promotor: Jelle de Plaa

Nowadays, it is well known that hydrogen and helium (and small traces of lithium and beryllium) were created shortly after the Big Bang, while the heavier elements are created in the cores of stars at different evolutionary stages. When these stars explode as supernovae, they expel metals synthesised…

'Foundations 1' takes place on 1-3 March. Do you want to learn more about different types of sources and methods for source analysis in the Dominican convent in Huissen? Register now by sending an email to ozsmed@hum.leidenuniv.nl!

Supply risks are not new. But the aggravation of power conflicts on the international stage coupled with global shifts towards energy transition and digitalization has triggered the next supply risk research era.

This thesis comprises the development of reproducible synthesis procedures for two-dimensional materials (composed of boron, nitrogen and carbon) on different metallic surfaces.

The glycosylation reaction is a pivotal reaction in creating new and complex oligosaccharides.

Why do opposites attract? According to Karin van der Tuin, researcher at Leiden University Medical Center (LUMC), it could be because of your DNA. The more you differ from one another, the better. She will be testing her ideas at the Lowlands festival Lowlands, where she will subject visitors to DNA…

It’s become somewhat of a tradition at Leiden University: the strategic conference at the end of June each year. About a hundred staff including the faculty boards, academic directors, directors of the expertise centres and Administration and Central Services, the representative councils and student…

The first direct detection of gravitational waves opened the possibility of mapping the Universe via this new and independent messenger.

A more efficient solar panel sounds great. But what if these new panels consume more toxic materials, or their production consumes a lot of energy? Leiden environmental scientists, together with colleagues from the Fraunhofer ISE, address this multifaceted question in a new publication in the prestigious…

This thesis contributes to studying primordial cosmology theories and their detectability in future observations.

This thesis is dedicated to the exploration of the primordial dark ages: unknown physics during the earliest stages of the Universe’s expansion that have not yet been directly probed by observations. Cosmic inflation is a burst of exponential expansion of space after the “Big Bang”.

The next round of courses will take place from Monday, 26 September 2022 until Wednesday, 30 November 2022. In the upcoming course round, level 1, level 2, level 3 and level 4 will be offered. Classes will take place on Mondays and Wednesdays only.

Mmmonk en het Henri Pirenne Instituut voor Middeleeuwse Studies (UGent) organiseren eind 2024 de tweede editie van Mmmonk School: Lessen voor gevorderde beginners rond het middeleeuwse boek. Mmmonk School biedt een interdisciplinair praktijkgericht programma over middeleeuwse Vlaamse manuscripten. Experts…

After the summer, we'll hit the ground running with OSCLunches and OSCoffee's, open and online accessible for all.

A discovery made in Leiden helps not only to make natural gas from CO2 but also to store renewable energy. Research by Professor Marc Koper and PhD student Jing Shen shows how this process can be implemented in a cost-effective and controllable way. Nature Communications, 2 september 2015.

In-use stocks of products can be considered as intermediaries between human needs and the physical world.

It must be there. We just cannot see it: mysterious dark matter and dark energy in the universe. Henk Hoekstra is one of the many cosmologists who would love to know what exactly these substances consist of. He has received a European research grant of 1.3 euro million to find out.

Research carried out at Leiden University contributes to our knowledge of sustainability. This is essential if we want to work together to find solutions to pressing issues, such as the current climate emergency and the shortage of raw materials.

We are doing all we can to save energy at the university. Find out how you as a member of staff or student can do about energy and help reduce CO2 emissions.

Four thousand visitors immersed themselves in art and science during Leiden's Night of Art and Science on 17 September. They could choose from dozens of lectures, experiments, interactive events and a lot of art.

The University is taking part in the National Warm Sweater Day on 10 February and the heating will be turned down in many buildings. Make sure you wear something warm!

Curious about how sustainability fits into our university's strategic plan, or how much energy and water we consume? Read about it here.

With the energy transition toward a renewable energy supply and a CO2-neutral economy, electrification of the energy system is rising in importance, which leads to the challenge of long-term storage of renewable electricity.

Duurzaamheid op de campus, energietransitie, groen, circulair

Due to the by now world-wide Covid19 restrictions on travelling and holding meetings, the committee has decided to cancel the conference in June. We are now looking into postponing the conference (either to a later date in 2020 or to 2021). We will keep you informed about any further developments. All…