Die Welt in Zahlen

Andrew Ivimey (Self - Narrator), Wade Davis (Self - Author, Into the Silence: The Freat War, Mallory, and the Conquest of Everest), Sarah Lacy (Self - Associate Professor of Anthropology, California State University), Stephen Venables (Self - Author, Everest - Alone at the Summit), Nicholas Ferroni (Self - History Teacher, Union High School, New Jersey), Maggie Moore (Self - Professor of Atmospheric Physics, University of Toronto)