Robert Clotworthy Giorgio A. Tsoukalos David Childress Robert R. Cargill Michael Cremo Erich Von Däniken George Noory Sara Seager Robert Bauval Philip Coppens
Patricia Callahan Matthew Crawford Stanton A. Glantz James Hansen Katharine Heyhoe Bob Inglis Michael Mann Marc Morano Bill O'Keefe Naomi Oreskes John Passacantando Tim Phillips Sam Roe Benjamin Santer Michael Shermer