Category:Ice ages
Ice ages, long periods of reduction in the temperature of the 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.
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Subcategories
This category has the following 5 subcategories, out of 5 total.
Pages in category "Ice ages"
The following 67 pages are in this category, out of 67 total. This list may not reflect recent changes.