Elvira Colmenarejo Calero is a young researcher at the Geological Survey of Slovenia's Department of Hydrogeology. She is pursuing her Ph.D. at the University of Nova Gorica, School of Environmental Sciences. She is an environmentalist at the Autonomous University of Madrid and obtained a master's degree in water management from the University of Cádiz. Her research interests include microplastic pollution, hydrogeology, groundwater dynamics, groundwater quality, and water management.