Do objectively correct solutions to ethical dilemmas exist? Or is ethics always a matter of your opinion against my opinion? How do you know what to do? What kind of thing is ethics anyway? Can you be an expert in ethics?

Dutch book about pesticides and waterquality

How do societies move forward with sustainable, effective and efficient management of Earth's water resources?

Leiden University is committed to reducing our water consumption.

We investigate water quality and want to understand the effects of human interference on aquatic biodiversity.

On 27 January 2022 Tjahjono Prasodjo successfully defended a doctoral thesis and graduated.

Water is all around us and is vital for all aspects of life. Studying the various compounds and life forms that inhabit natural waters lets us better understand the world around us.

Promotor: M.T.M. Koper, Co-Promotor: L.B.F. Juurlink

The International Course on Water Use and Management in Cagayan Valley The Philippines (2011-2015)

To design the ideal water oxidation catalyst, understanding of the catalytic mechanism and decomposition pathways is essential.

Human activity, such as pollution, may disturb the balance of living water systems, which has consequences for biodiversity, but also for other functions such as water purification. Leiden University maps living water systems using the most advanced technologies.

This project investigates ancient water management of streams, springs and runoffs on the archaeological site of Monte Albán, Mexico, as a means to contribute with different stakeholders in the development of sustainable solutions to water problems today such as floods and scarcity.

Astronomical observations of cold regions in the universe show a rich inventory of ices. Part of these ices may end up on planets like our own, but in that journey they will be exposed to considerable amounts of radiation.

Improving environmental risk assessment of pesticides in surface waters

While ecosystems have concrete benefits for human society, these benefits are typically overlooked in decision-making.

This minor is in Dutch.

This programme video is presented in Dutch

This thesis examines the impacts and challenges of water use of electric power system. This thesis found that there are large differences in water use of electricity technologies, with hydropower and thermal power being two large water users.

Before the large scale use of renewable energy sources can be implemented in our society, the storage of electrical energy needs to be tackled. Storage the energy as hydrogen via the reduction of protons is a good option.

Voor zowel archeologen, paleontologen en geologen als vrijwilligers in de archeologie en paleontologie is het geen verrassing meer dat op de stranden van de Nederlandse kust fraaie vondsten gedaan kunnen worden. Vele artikelen, boeken, tentoonstellingen, congressen, lezingen, ‘zoekdagen’, krantenberichten,…

In this dissertation, the synthesis and characterization of a series of iron complexes based on different ligand platforms are described.

Amerindian intra- and inter-insular relationships and social organization in the pre-colonial Windward Islands.

With the growth of cybercrime in recent years, there is an urgency to gain insight into the money laundering process and the actors involved. This study focusses on the money laundering process and maps the actors involved in banking malware and ransomware.

In the search for sustainable energy solutions, the idea of artificial photosynthesis has been proposed as an approach with which to use water and sunlight to produce hydrogen.

How does the vision of problems and solutions from

Denk je erover om Journalistiek en Nieuwe Media te studeren? Leer meer over deze master en bekijk onderstaande introductievideo.

On 2 September 2021, Gert Jan Geertjes defended his thesis 'Staatsrecht en conventie in Nederland en het Verenigd Koninkrijk'. The doctoral research was supervised by Prof. L.F.M. Verhey and Prof. W.J.M. Voermans.

Many stimulating philosophical analyses have been written on contemporary technology; this book examines on the contrary how changes in contemporary technological environment have been reflected onto philosophy itself. The book shows how technological changes have marked a number of key concepts of…

Ice, the solid state of water, plays an important role on our planet as well as the entire universe.Despite the fact that an individual water molecule has a very simple structure, its chemical bonding in the solid phase can be surprisingly complex.

Are you thinking about studying Criminologie en Veiligheidsbeleid? Learn more and watch the videos. Please note that this programme is taught in Dutch.

On 3 November 2021, Lucas Noyon defended the thesis 'Strafrecht en publieke opinie'. The doctoral research was supervised by Prof. J.H. Crijns and Prof. J.W. de Keijser.

Promotor: M.T.M. Koper, Co-promotor: L. Juurlink

A study into the use of strategies in listening to French news reports

On 10 June 2020, Gitta Veldt defended her thesis 'Europese productnormen en privaatrechtelijke normstelling'. The doctoral research was supervised by Prof. H.J. Snijders.

As a virtually inexhaustible source, solar energy plays a major role in future global energy scenarios.

Are you interested in an economics programme that takes a multidisciplinary approach? The bachelor’s degree Economics and Society combines economics with political science and law, allowing you to understand the most pressing economic and societal challenges from various perspectives.

Het is een wijdverbreid idee dat (post-)middeleeuwse steden een sterfteoverschot hadden en zij slechts in leven konden blijven door de toestroom van migranten; een fenomeen dat bekend staat als het ‘urban graveyard’-effect. Over details valt te twisten, maar duidelijk is dat de stad en de dood dichter…