As more and more people live and work in the city, there is less space for green areas and more room is being taken up by buildings and streets. This development is increasing inner-city temperatures. On Marineterrein, organizations are looking for ways to introduce more greenery into the city and keep people cool by using water more smartly, such as creating blue-green roofs that combine water buffers and eco-friendly features. The solutions we device, test, and apply on Marineterrein help us to identify ways of making the city a greener, cooler place.