World History Chapter 2 Part 1: The Ice Age | PREHISTORY

An ice age is a long period of reduction in the temperature of Earth's surface and atmosphere, resulting in the presence or expansion of continental and polar ice sheets and alpine glaciers. Earth's climate alternates between ice ages and greenhouse periods, during which there are no glaciers on the planet. Earth is currently in the Quaternary glaciation. Individual pulses of cold climate within an ice age are termed glacial periods (or, alternatively, glacials, glaciations, glacial stages, stadials, stades, or colloquially, ice ages), and intermittent warm periods within an ice age are called interglacials or interstadials.

In glaciology, ice age implies the presence of extensive ice sheets in both northern and southern hemispheres. By this definition, Earth is currently in an interglacial period—the Holocene. The amount of anthropogenic greenhouse gases emitted into Earth's oceans and atmosphere is predicted to prevent the next glacial period for the next 500,000 years, which otherwise would begin in around 50,000 years, and likely more glacial cycles after.

Welcome to our new WORLD HISTORY SHORTS series! This series is meant to be complement our longer History of the World series, but this will be entirely in Shorts format and be a new standalone series. One topic per episode. Each part or episode will be released on consecutive days until the Chapter is done.

THIS VIDEO IS FROM THE PREHISTORY PLAYLIST OF OUR MADE IN HISTORY SHORTS SERIES! Prehistory Playlist:    • Prehistory | World History Shorts  

Check out the Sections on our Homepage for all the Series we are working on (Currently working on videos for Series 1-4)
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1. CLICK HERE TO SEE THE ENTIRE MADE IN HISTORY SERIES (EVERY CHAPTER AND EPISODE IN ORDER):    • Prehistory (The Paleolithic and Neoli...  

2. Check out our Made in History Series in SHORTS FORM:    • World History Chapter 1 Part 1: The A...  

3. Check out our HISTORY BY REGION (includes History of the World, Africa, and different countries):    • World History Chapter 1 Part 1: The A...  

4. Check out our MADE IN MYTHOLOGY Series (World Mythology stories):    • Playlist  

5. Check out our STANDALONE Playlist (just bite sized videos on individual topics, ex. Gupta Empire, or Gauls):    • Gaul, A Short History Of France's Anc...  

6. Check out out AGE OF EMPIRES Series (History the game campaigns are based on):    • AGE OF EMPIRES Part 1: Ascent of Egyp...  

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