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Did any humans survive the Ice Age?

Yes, people just like us lived through the ice age. Since our species, Homo sapiens, emerged about 300,000 years ago in Africa, we have spread around the world. During the ice age, some populations remained in Africa and did not experience the full effects of the cold.

sapiens.org - A Reader's Question About Surviving the Ice Age - SAPIENS.org

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“How many ice ages has the Earth had, and could humans live through one?”

—Mason C., age 8, Hobbs, New Mexico

First, what is an ice age? It’s when the Earth has cold temperatures for a long time—millions to tens of millions of years—that lead to ice sheets and glaciers covering large areas of its surface. We know that the Earth has had at least five major ice ages. The first one happened about 2 billion years ago and lasted about 300 million years. The most recent one started about 2.6 million years ago, and in fact, we are still technically in it. So, why isn’t the Earth covered in ice right now? It’s because we are in a period known as an “interglacial.” In an ice age, temperatures will fluctuate between colder and warmer levels. Ice sheets and glaciers melt during warmer phases, which are called interglacials, and expand during colder phases, which are called glacials. Right now we are in the most recent ice age’s warm interglacial period, which began about 11,000 years ago.

What was it like during the ice age?

When most people talk about the “ice age,” they are usually referring to the last glacial period, which began about 115,000 years ago and ended about 11,000 years ago with the start of the current interglacial period. During that time, the planet was much cooler than it is now. At its peak, when ice sheets covered most of North America, the average global temperature was about 46 degrees Fahrenheit. That’s 11 degrees cooler than the global annual average today. That difference might not sound like a lot, but it resulted in most of North America and Eurasia being covered in ice sheets. Earth was also much drier, and sea levels were much lower, since most of the Earth’s water was trapped in the ice sheets. Steppes, or dry grassy plains, were common. So were savannas, or warmer grassy plains, and deserts.

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