How can challenge-based learning in higher education contribute to sustainable urban waste management and support The Hague’s transition to a zero-waste city by 2050?

What happens to the different waste streams?

What is better for waste recycling: a plastic, paper or ceramic cup? A bio-based or fossil-based coating? Waste sorting at the source or at a recycling facility? Ask ten experts and you will get ten different opinions. We can all agree on one thing: doing nothing is not an option. Thus, Leiden University…

Rebecca Tompkins defended her thesis on 21 March 2019

Nederland Circulair! is organising the week of the circular economy, for the second time. This is a great setting for Leiden University to promote several of the university’s circular initiatives. We will kick off with an initiative by alumna Noortje Schrauwen: Raw material beachcombing.

A large amount of the EU's used or wasted textile is exported towards lower-income countries. Much of this exported textile is either burned or dumped and the amount that is truly reused or recycled is uncertain.

Turning beer waste into a useful, sustainable product. That was the mission of students from Leiden at the international BISC-E event. The biology students challenged themselves and won third place in the Dutch finals of this competition. For this, they used the simple formula: Grain + fungus = coas…

On 25 January 2024 H.J. Pak successfully defended a doctoral thesis and graduated.

The majority (80%) of e-waste generated globally are recycled informally in developing countries.

On the 8th of September Yun-An Olivia Dung successfully defended a doctoral thesis and graduated.

Food relations (through production, distribution, circulation, exchange and waste) represent the embodiment of our relation to the environment.

The rise and fall of the cesspit in an urban context

This study focused on how households' food consumption and waste were adapted to lifestyles during COVID-19.

Food waste is a defining inefficiency of the modern food system, with profound implications for resource use, climate change, and circular economy transitions. This dissertation examines food waste through two complementary lenses: the prevention of avoidable food waste and the valorization of unavoidable…

How do different communities of residents in The Hague perceive and manage food waste in relation to citizenship (rights and responsibilities)?

Over the past decades within the European Union (EU), economic proliferation and globalisation have resulted in an increase in transboundary waste transportation. Although waste trading can often have positive economic and environmental impacts by repurposing natural resources within industrial sectors,…

During orange juice production only around a half of every orange is turned into juice. Lizah van der Aart and Blair Berger, both MSc-students at the IBL, and Ryan Bogaars from Delft University, received an NWO-scholarship to develop a novel method to extract natural products from orange residue.

On paper it is recycled, but in reality enormous quantities of plastic waste from the Netherlands end up in Asian seas. Researchers from the Leiden Institute of Environmental Sciences charted the fate of plastic food packaging waste from the Netherlands. They published their results on July 8 in the…

Unplugging equipment that's secretly guzzling electricity, putting the curtains behind the radiator and only using a water-saving showerhead. The students participating in the Student Energy Race are given tips that everyone who cares about the environment and their wallets should learn from.

On Monday 4 December 2023, the GTGC Seed Grant project with Glenn Aguilar Hernandez, Elena Bondarouk, Arjan de Koning, Antonella Maiello, and Daniela Vicherat Mattar presented their reseach 'Flaws in the flow. Investigating gaps in the governance of European textile waste export'.

Face masks and gloves designed to protect us are, in fact, dangerous for the animals around us. Scientists from Leiden warn that throughout the world, on land and in the water, animals are ingesting corona waste, or getting entangled in it. The two biologists are asking for everybody’s help to better…

International trade has played a major role in defining the modern global economy. Trade, however, entangles the environmental pressures of economic sectors, giving the illusion of environmental improvements, while the opposite may be occurring.

Erik Kwakkel, researcher at the Faculty of Humanities, has found an extraordinary manuscript in the University Library’s extensive collection of medieval books. The book in question dates back to the first half of the eleventh century and is made entirely out of waste left over from the production of…

The circular economy is typically seen as the progressive alternative to our wasteful linear economy, where raw materials are used to make the products that feed today’s rampant consumerist hunger, which are then thrown away. In a fascinating article, archaeologist Maikel Kuijpers reflects on the recycling…

On Thursday 30 May, Leiden University hosts a workshop to foster collaborations to improve the governance of European textile waste export. Different stakeholders, including municipalities, associations of textile collectors and sorters, industry and consumers associations, are warmly invited to join…

At the recent UN summit in Geneva, representatives from more than 180 countries failed to reach a global plastics agreement. Esther Kentin, a lecturer at Leiden Law School, spoke to media outlets on the issue: ‘Human health is at stake.’

As part of the GTGC Lunch Seminars (Spring 2023), Elena Burgos Martinez, Jyothi Thrivikraman and Daniela Vicherat Mattar presented their work on Food Solidarity as part of a GTGC seed grant project.

Ever wondered how big the food waste problem really is?

We are launching more and more satellites and space is filling up as a result. Currently around 100 million pieces of space debris are floating around Earth. So who’s going to clear it up?

Leiden University will install over 30 tap water stations in the autumn of 2017 at the various University buildings. The first is already in use.

For months, students dedicated themselves to a more sustainable world alongside their studies, as part of the LDE Sustainability Honours Programme. What solutions did they come up with for the challenges posed by organisations like Naturalis and ClimateMatters?

Face masks and plastic gloves are supposed to protect us from corona, but they are becoming an increasing problem for the environment. In a special series of the New York Times, Leiden biologist Liselotte Rambonnet and alumnus Auke-Florian Hiemstra talk about their research and the special website they…

How do we approach education that facilitates creative confidence for students that leads to innovative solutions to society’s present day and future sustainability challenges? This education research project tackles a sustainability dilemma faced by households in everyday life viz.

An interdisciplinary team of Leiden researchers has discovered that wasting syndrome, a severe byproduct of tuberculosis, is the same for all humans and animals studied. The discovery offers new opportunities to investigate the still insufficiently understood condition. The scientists also developed…

At the recent UN summit in Geneva, representatives from more than 180 countries failed to reach a global plastics agreement. Esther Kentin, a lecturer at Leiden Law School, spoke to media outlets on the issue: ‘Human health is at stake.’

From political confessions to life lessons from his own student time. On 14 March, Prime Minister Mark Rutte gave candid answers to questions from Leiden law students.

Join the Pipe is a project committed to reduce plastic waste and to provide people both in the Global South and in the Global North with drinkable water.

Join the Pipe is a project committed to reduce plastic waste and to provide people both in the Global South and in the Global North with drinkable water.

IoT technology poses serval opportunities to supply chains. This thesis employs grey correlation and forecasting models, system dynamics, agent-based modeling, and ex-ante LCA to investigate and quantify the opportunities and risks of IoT-enabled sustainable supply chain operations from both industrial…

The earth has more than 7 billion inhabitants, all of whom leave behind traces of pollution. However, not all forms of pollution have the same harmful effect. Leiden scientists help determine where we should put our priorities.

A sustainable resource management is an essential aspect to satisfy the current human needs without compromising the needs of future generations.

Our Mission: To optimize human well-being within the constraints of planetary boundaries through innovative research, education, and partnerships that advance sustainable production and consumption. We strive to remain global leaders in developing and applying systems-based approaches, methodological…

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

This subproject argues for a close and forensic reconstruction of financial flows to and from Soviet Central Asian republics in the postwar period.

What are the possibilities of converting biowaste streams into value added products? What current and future technologies will enable this transition with minimal environmental and economic costs? The researchers in H2 steel project will enable the transition of sewage sludge into green hydrogen, steel…