Why do we have ice ages and when is the next one due? Chart the progress of different ice ages through the history of our planet, from Snowball Earth hundreds of millions of years ago to the recent ice ages. In Season 2, Episode 12, "America's Ice Age." #HowTheEarthWasMade Subscribe for more from How the Earth Was Made and other great The HISTORY Channel shows: http://histv.co/SubscribeHistoryYT Watch more How the Earth Was Made on YouTube in this playlist: https://www.youtube.com/playlist?list=PLob1mZcVWOajq6oVD_f2I2-gPZk4zvN7S Check out exclusive The HISTORY Channel content: History Newsletter - https://histv.co/newsletter Website - https://histv.co/History Facebook - https://histv.co/Facebook Twitter - https://histv.co/Twitter HISTORY goes to the ends of the earth to find where our world began. Forged from fire and ice, formed by floods, volcanoes, asteroids and earthquakes, our planet tells a dynamic geological story. What are mega-tsunamis? What happens when you have millions of years of rain? Visual effects, location filming and stunning aerial photography bring viewers back 4.5 billion years to enjoy a unique window on our world. How the Earth Was Made peels back time like layers of rock to reveal the origins of the place we call home. The HISTORY® Channel, a division of A+E Global Media, is the premier destination for historical storytelling. From best-in-class documentary events, to a signature slate of industry leading nonfiction series and premium fact-based scripted programming, The HISTORY® Channel serves as the most trustworthy source of informational entertainment in media. The HISTORY® channel has been named the #1 U.S. TV network in buzz for seven consecutive years by YouGov BrandIndex, and a top favorite TV network by Beta Research Corporation. For a deeper dive, visit history.com or follow @history on Instagram, Twitter, Facebook, YouTube and TikTok.