Marine Frantz is a PhD student in geography at Paris-1 Panthéon–Sorbonne University. During her masters in Urban and Regional Planning she worked on the Popsu-Métropoles research program led by the PUCA. More specifically she worked on the urban metabolism of the Métropole Européenne de Lille (MEL) and its waste management. She is now affiliated to the mixed research unit Géographie‑cités (UMR CNRS 8504) and her research focuses on periurbanisation and land conversions in India.