Hasan Volkan Oral is a full-time researcher at the Department of Civil Engineering, Faculty of Engineering, İstanbul Aydın University, Turkey. After obtaining a Ph.D. from Bogazici University, he conducted his postdoctoral studies at the Ben Gurion University of Negev, İsrael in the fields of Agricultural and Environmental Sciences. Currently, he is working on environmental sustainability, nature-based solutions, and circularity applications in environmental sciences & engineering. He is the Management Committee Member to represent Turkey and the leader of Working Groups in some COST actions related to sustainability and circularity.