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Bookmark or Share- Climate explained: What is an ice age and how often do they happen?These six major ice ages lasted between 300 and 30 million years respectively. Ice ages vary in length of time, extent, and extremes of temperature. The most extensive ice age was the period...
- Explainer: Understanding ice ages - Science News ExploresThe most recent ice age ended about 12,000 years ago. In North America, the last four ice-age cycles lasted about 100,000 years each. That includes a roughly 10,000-year warm spell between each ice age. So, the ice ages themselves lasted, on average, about 90,000 years.
- Ice Age Timeline - World History EncyclopediaDefinition. An ice age is a period in which the earth's climate is colder than normal, with ice sheets capping the poles and glaciers dominating higher altitudes. Within an ice age, there are varying pulses of colder and warmer climatic conditions, known as 'glacials' and 'interglacials'.
- Ice age | Definition & Facts | BritannicaIce age, any geologic period during which thick ice sheets cover vast areas of land. Such periods of large-scale glaciation may last several million years and drastically reshape surface features of entire continents. A number of major ice ages have occurred throughout Earth history.
- Ice Age - World History EncyclopediaAn Ice Age is a period in which the earth's climate is colder than normal, with ice sheets capping the poles and glaciers dominating higher altitudes. Within an ice age, there are varying pulses of colder and warmer climatic conditions, known as 'glacials' and 'interglacials'.
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