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James Balog - Self - Photographer, Svavar Jónatansson - Self - Photo Assistant, Louie Psihoyos - Self - Photographer & Oscar Winning Filmmaker, Kitty Boone - Self - The Aspen Institute, Sylvia Earle - Self - National Geographic Explorer (as Sylvia Earle Ph.D.) , Dennis Dimick - Self - National Geographic Editor, Adam LeWinter - Self - EIS Engineer (as Adam Lewinter) , Jason Box - Self - Climatologist, Ohio State University (as Jason Box Ph.D.) , Tad Pfeffer - Self - Glaciologist, University of Colorado (as Tad Pfeffer Ph.D.) , Suzanne Balog - Self - James's Wife, Jeff Orlowski - Self - EIS Videographer, Synte Peacock - Self - Oceanographer, National Center for Atmospheric Research (as Synte Peacock Ph.D.) , Terry Root - Self - Senior Fellow, Stanford University Woods Institute (as Terry Root Ph.D.) , Thomas Swetnam - Self - Directof of Tree-Ring Research, University of Arizona (as Thomas Swetnam Ph.D.) , Peter Hoeppe - Self - Head of Geo Risks Research, Munich Reinsurance (as Peter Hoeppe Ph.D.)