In the CARDIMED, AMU (with LCE) work on the development of nature-based solutions specifically tested on DEMO5 Micro-forests and unsealed soils in Provence-Alpes-Côte d’Azur (PACA) region, France (SEMIDE) with scientific measures (water, air, biodiversity, soils...) focused on creating pervious / permeable surfaces at two University campuses located in Marseille. The Saint-Jérôme site in a peri-urban context and the Saint-Charles site is in the city center.