Mark holds a BSc from the University of Sydney, where he majored in ecology and supplemented this with an Honours degree in marine ecology from the James Cook University of North Queensland. In 1989 he moved to Israel, joining Kibbutz Lotan in the southern Arava. Mark received a Masters degree in Education for Sustainability from the South Bank University of London that included a research project and dissertation entitled "Common Paths: A Jewish-Arab coexistence project between two schools in Israel. A case study in peace education". Mark served as General Secretary of the kibbutz in the years 2008-11. Since 2000 he has been a senior staff member and director of education in Lotan's Center for Creative Ecology, lecturing in the "Green Apprenticeship" training program, teaching and facilitating groups of adults, youth, and children developing programming around themes of community and sustainability.