Go to https://curiositystream.thld.co/historyoftheearth_0822 and use code HISTORYOFTHEEARTH to save 25% off today, that’s only $14.99 a year. Thanks to Curiosity Stream for sponsoring today’s video. ------------------------------------------------------- Researched and Written by Leila Battison Narrated and Edited by David Kelly Thumbnail Art and Art by Ettore Mazza Snowball Earth image by Oleg Kuznetsov - 3depix - http://3depix.com/ • CC BY-SA 4.0 If you like our videos, check out Leila's Youtube channel: https://www.youtube.com/channel/UCXIk7euOGq6jkptjTzEz5kQ Music from Epidemic Sound and Artlist, stock footage from Videoblocks. Image Credits: Earth during Last Glacial Maximum By Ittiz - Own work, CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=9237442 James St John Tillite Rocks Banded Iron Formations Tillite Victoria Australia By Rexness from Melbourne, Australia - Permian sandstone with tillite deposits, Werribee Gorge State Park, Victoria Australia, CC BY-SA 2.0, https://commons.wikimedia.org/w/index.php?curid=76345219 Dropstone By Eurico Zimbres, CC BY-SA 2.5, https://commons.wikimedia.org/w/index.php?curid=2646630 Kent G. Budge - Dropstone within pyroclastic bed in the wall of Kilbourne Hole, Organ Mountains-Desert Peaks National Monument, New Mexico, United States Glacial striations By Walter Siegmund - Own work, CC BY 2.5, https://commons.wikimedia.org/w/index.php?curid=2500400 Varve Andreas Steinhoff, Attribution, via Wikimedia Commons Permafrost thawing By NPS Climate Change Response - Thawing permafrost, CC BY 2.0, https://commons.wikimedia.org/w/index.php?curid=50672118 Permafrost By Boris Radosavljevic - https://www.flickr.com/photos/139918543@N06/24823171765/, CC BY 2.0, https://commons.wikimedia.org/w/index.php?curid=80427896 Cryoconite By Ville Miettinen from Helsinki, Finland - Crevasse, CC BY 2.0, https://commons.wikimedia.org/w/index.php?curid=5494414 Cryoconote by By Kertu Liis Krigul - Own work, CC BY-SA 4.0, https://commons.wikimedia.org/w/index.php?curid=64480622 00:00 Introduction 05:33 Mystery Glaciers 17:00 Snowball Earth 27:22 How? 39:23 Escape