He is the published author or co-author of four books and numerous articles, and has received recognition for his work on documenting the exodus of Jews from Arab countries after the Second World War.
He testified before the Congressional Human Rights Caucus in Washington D.C. in 2007,[9] on the topic of truth, justice, and reconciliation for Jewish refugees from Arab countries, and serves on a number of boards for Sephardi-related organizations.
The Sephardi Voices Project is the first comprehensive digital archive that documents and preserves the life stories of Jews who lived in Islamic lands with videos, audio, and photographs.
Additionally, he has been a member of the Executive Committee for Justice for Jews from Arab Countries (JJAC) since 2012,[10] and has been a member of the Academic Advisory Board of the American Sephardi Federation since 2008[11] Green is also the founder and Executive Director of Sephardi Voices, an international NGO formed in 2009 and dedicated to collecting the testimonies of the "forgotten exodus" of Jews from Arab countries.
Green is a noted scholar on the subject of American Sephardi and Mizrahi, the sociology of Judaism, and South Florida Jewry.
He has published several articles on the subject of Jewish demographics in South Florida,[17][18] and wrote the biography of Rabbi Leon Kronish, the spiritual leader of Temple Beth Sholom from 1944-1984, and a notable figure both among South Florida Jewry and in American Reform Judaism in general.
He has written extensively on the subject, and the book based on his dissertation is viewed as the most significant contribution to the sociological origins of gnosticism, three decades after its publication.