Walter Leal Filho (BSc, PhD, DSc, DPhil, DEd, DL, DLitt) is a Senior Professor and Head of the Research and Transfer Centre "Applications of Life Sciences" at Hamburg University of Applied Sciences in Germany, and Chair of Environment and Technology at Manchester Metropolitan University, UK. He is the initiator of the Word Sustainable Development Symposia (WSSD-U) series, and chairs the Inter-University Sustainable Development Research Programme. Professor Leal Filho has written, co-written, edited or co-edited more than 300 publications, including books, book chapters and papers in refereed journals.

Luísa Aires is Associate Professor at the Department of Education and Distance Learning of Universidade Aberta (UAb) (the single public distance education university in Portugal). She holds a Master’s and a PhD in Education Sciences and her research interests focus on educational communication, interpersonal relationships in e-learning and qualitative methodologies in educational research.