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ice age
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Polar projection map depicting the five major ice caps during the Ice Age: Cordilleran, Keewatin, Labrador, Greenland, and European. Each ice cap is labeled and shown with arrows radiating outward, indicating the direction of ice movement from these central regions across North America, Greenland, and Europe. The North Pole is marked at the center of the map. Map of the northern United States illustrating the extent of Pleistocene ice sheets, with shaded and outlined areas showing the maximum reach of the Wisconsinan, Illinoian, Kansan, and Nebraskan glaciations. The map uses different colors and line styles to distinguish each glacial advance and includes a labeled Driftless Area that remained unglaciated. Map of Europe showing the maximum extent of ancient ice sheets, with the Scandinavian Ice Sheet covering much of northern Europe and the Siberian Ice Sheet extending into northeastern Europe. Major ice-covered regions, including the British Isles, North Sea, German-Polish area, Alps, Pyrenees, and Caucasus, are labeled.
Examine glacial scratches on rocks from Switzerland to New York City for evidence of Earth's icy past

ice age: References & Edit History

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  • The Editors of Encyclopaedia Britannica
    Encyclopaedia Britannica's editors oversee subject areas in which they have extensive knowledge, whether from years of experience gained by working on that content or via study for an advanced degree. They write new content and verify and edit content received from contributors.

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Article History

Type Description Contributor Date
Modified link of Web site: Geosciences LibreTexts - Ice Age Glaciations. Jul 18, 2026
Add new Web site: Live Science - Why do Ice Ages happen? Jun 20, 2024
Add new Web site: Royal Geographical Society with the Institute of British Geographers - Ice Ages and geological timescales. Dec 08, 2023
Add new Web site: Illlinois State Museum - Exploring the Ice Age Midwest - Ice Ages. Jun 30, 2023
Add new Web site: USGS - The Great Ice Age. May 01, 2023
Add new Web site: University of Wisconsin-Madison - Wisconsin Geological and Natural History Survey - Ice Age geology. Feb 18, 2023
Add new Web site: Geosciences LibreTexts - Ice Age Glaciations. Sep 12, 2022
Add new Web site: World History Encyclopedia - Ice Age. Sep 02, 2022
Corrected display issue. Sep 21, 2018
Add new Web site: Children's Discovery Museum of San Jose - The Ice Ages. May 25, 2018
Add new Web site: Utah Geological Survey - Ice Ages � What are they and what causes them? May 10, 2018
Add new Web site: KidsPast.com - Ice Ages Affect Human Evolution. Dec 28, 2016
Add new Web site: Easy Science for Kids - Ice Age. Dec 28, 2016
Deleted map. Mar 05, 2012
Add new Web site: NeoK12 - Educational Videos and Games for School Kids - Ice Age. Nov 03, 2011
Geologic time data updated. Sep 11, 2009
Added new Web site: How Stuff Works - Science - Could Reversing Global Warming Start An Ice Age? Dec 25, 2008
Media added. Mar 10, 2008
Added new Web site: EnchantedLearning - Ice Age Mammals. Oct 11, 2007
Article revised and updated. Jan 12, 2007
Added new Web site: How Stuff Works - Geography - How the Ice Age Worked. Jun 19, 2006
Added new Web site: How Stuff Works - Geography - How the Ice Age Worked. Jun 19, 2006
Article added to new online database. Jul 20, 1998
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