Climate Action

Rivers take vital water to villages and cities, but unfortunately they also carry harmful plastic to oceans. In order to prevent this, we need to find out exactly where the plastic comes from and how it is distributed over time and space. Counting plastic waste items from bridges is one of the commonly used methods to do this. But then how can the huge amounts of plastic in inaccessible places be pinpointed? Master student in Hydraulic Engineering Marlein Geraeds spent her internship at The Ocean Cleanup investigating how to monitor plastic waste in Malaysia’s River Klang by means of drones.

They are a beautiful sight, those cumulus clouds drifting by slowly high above our heads. But what is propelling them? And how do they affect the wind? To find out Louise Nuijens spent a few days with her head in the clouds. Literally.

The Netherlands has had an indissoluble relationship with water throughout history. Nowadays, 2400 km of waterways flowing through its veins use timber retaining walls along their banks. A more eco-friendly solution than brick or concrete but, still, not as sustainable as it could be. Civil Engineer Abhijith Kamath is researching an alternative method to use tree roots to strengthen waterways’ banks. Making Dutch channels greener in every way.

When looking at a dike, you wouldn’t be able to detect any motion in this robust structure. Though in fact there is. On a millimetre level, dikes expand and shrink in relation to the weather conditions. Ece Özer showed that observing this ‘breathing’ of dikes could help prevent catastrophic flooding events. She used this feature to create an innovative model based on satellite data to better detect weaknesses in a dike.

At the weekend Matthieu de Schipper likes to surf the waves but on weekdays he studies how they transport the sand along the coast and up and down beaches. ‘Sea level rise is a threat to coasts across the globe. I want to use the forces of nature to provide engineering solutions to this problem on a global scale’. At the Sand Motor project in the Netherlands De Schipper is training students to do the necessary fieldwork. In all weathers.