Dr. Rianne van Duinen is an environmental economist at ACTeon, France. She holds an MSc in environmental economics and natural resources management from Wageningen Univeristy (the Netherlands) and a PhD from the University of Twente (Enschede, the Netherlands). She has several years of experience with the valuation of (marine) ecosystem services. Rianne has previously worked on European Union projects including the FP7 project VECTORS where she contributed to the valuation of changes in marine recreational ecosystem services due to climate change. Before joining ACTeon Rianne worked for six years as an economic researcher at the research institute Deltares in the Netherlands.