by Damià Barceló Cullerès, IDAEA and Despo Fatta-Kassinos, University of Cyprus
On November 21, 2023, Dion passed away in Cincinnati, Ohio/US, at the age of 58. In addition to being a scientist, teacher, and author, Dion was a dedicated husband to Paula and a loving father to his daughters Stella and Marianna. Dion's impactful life transcended his role as a university professor; it was a global scientist dedicated to advancing water science and engineering. Through his extensive travels, he not only shared knowledge but also made significant contributions to the international landscape of water science, leaving an indelible mark on the field.