Leiden University is working hard to make its buildings more sustainable, also on the Humanities Campus. An important step in this context is the construction of a Thermal Energy Storage (TES) system. Following the successful completion of the first phase, in which the Herta Mohr building was connected…

How do you combine the growth of wind energy with the protection of vulnerable seabirds? With her master’s thesis on this delicate balance, Sofie Hajer won the 2025 Unilever Research Prize. Her work provides new insights into how ecology and policy can strengthen each other.

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?

Facility

Can a robot perform a religious ritual just like a monk? And what exactly is a religious ritual? Robots and religion seem to be two different subjects, but according to university lecturer Elpine de Boer, both can make us think about what it means to be human and what we consider to be of value. Together…

Henk Hoekstra and Alessandra Silvestri work on the astronomy and theoretical physics in the Euclid mission. These Dutch researchers are part of the mission.

Getting to know all his colleagues as fast as possible, and learning about the faculty’s strengths: these will be Jasper Knoester’s first challenges. Jasper became the new Dean of the Faculty of Science on 1 January, and he is optimistic about the corona restrictions. ‘Obviously, this isn’t the start…

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…

German-American Mia Müller (26) has been working at the European Parliament for three years now as Press Officer at The Greens/EFA Group. She is a bit nervous about her 'first' elections.

On the 6th of December, Buurtlab 070 and the Leiden University Green Office (LUGO) hosted an event at the Spinozahof in the Stationsbuurt, bringing students and local residents together to explore energy (in)justice through the serious game Sunjust.

As early as 2030, batteries in electric vehicles could fully meet the need for short-term electricity storage around the world. By connecting them to the power grid they can provide their stored energy, improving energy security and enabling renewable technologies in cleaning the grid.

Festival

From a meaningless block of plastic to an advanced component that contributes to the energy transition. The technicians and scientists of our faculty think it out in detail and make it a reality. This special project shows that they need each other.

Lecture, Tuesday Talks: Science Insights

Digitalisation can make a huge contribution to a greener future, but it must also be as sustainable as possible. To make significant progress, more collaboration and national leadership will be needed. Leiden University has therefore signed the Digital Sustainability Manifesto, which was presented on…

Netherlands and China can learn from each other to handle household and livestock wastewater more sensibly. In the FOREWARD project, scientists from Leiden, Wageningen, and China are working together with local partners on feasible solutions that advance the environment, health, and economy.

The University has ambitious plans for reducing the environmental impact of its activities. To this end we have taken university-wide measures in the form of improved building sustainability, sustainable energy and water-saving measures. As an employee, you can also contribute to lowering the environmental…

Portraits that gaze at you and have moving stories to tell: HEAR ME NOW says what usually remains unsaid.

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…

The challenges of building a sustainable society are unprecedented. But the Dutch municipalities cannot be faulted for their commitment. They are working hard, conclude Professor Eefje Cuppen and Lian Merkx, programme manager for energy at the Association of Netherlands Municipalities (VNG). To exchange…

On Monday 26 February the terrible news reached us that our gifted former Egyptology student – and former student assistant at the Leids Papyrologisch Instituut – Juan Archidona Ramírez had succumbed to cancer.

Lecture

After hard work in the lab, Chemist Tirong Guo has developed a group of materials that provide a stable and efficient foundation for artificial photosynthesis. Will this enable the large-scale production of hydrogen and other useful compounds in the most sustainable way possible? Guo will defend her…

Hans van den Berg, CEO of Tata Steel NL, is in the eye of the storm. He continues to believe in connection, debate and knowledge that will make green steel possible.

Rik Rozendaal has won one of the three annual dissertation awards of the European Association of Environmental and Resource Economists (EAERE). The economist received the award for his dissertation on climate policy.

PhD defence

Personal development, Transferable skills

Study support

The war between Ukraine and Russia is playing out not just on the battlefield but also on the geopolitical playing field of gas. Conflicts at the start of this century about this energy source were, says PhD candidate Ilia Barboutev, a precursor to today’s war.

The University has established an Environmental Policy Plan, which sets a number of ambitious goals to reduce its direct environmental impact and CO2 footprint and to raise staff awareness of sustainable and eco-friendly operations.