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An ice age involves long-term cooling that allows continental glaciers, mountain glaciers, or polar ice caps to expand or remain present.
An ice age is a prolonged period of reduced temperatures at Earth’s surface and in its atmosphere, during which continental glaciers, alpine glaciers, and polar ice caps expand or persist. The term can describe very long-lasting icehouse periods or shorter intervals of cooling within them. Ice ages contain colder phases called glacials and warmer phases called interglacials. Earth is currently in an icehouse period known as the Late Cenozoic Ice Age, which began about 34 million years ago. Within it, the Quaternary Ice Age began approximately 2.58 million years ago and includes repeated advances and retreats of ice sheets. The current warm interglacial, the Holocene, began about 11,700 years ago after the Last Glacial Period.
An ice age involves long-term cooling that allows continental glaciers, mountain glaciers, or polar ice caps to expand or remain present.
Ice ages include colder glacial periods and warmer interglacial periods.
Earth is currently in the Late Cenozoic Ice Age and the Quaternary Ice Age, but it is presently experiencing the Holocene interglacial.
The Last Glacial Maximum occurred approximately 26,000 to 20,000 years ago, while the most recent glacial phase, the Younger Dryas, ended about 11,700 years ago.
A prolonged period of lower global temperatures associated with the presence or expansion of continental glaciers, alpine glaciers, or polar ice caps.
A long-term climate state in which glaciers or permanent ice caps exist somewhere on Earth.
A colder phase within an ice age when ice sheets and glaciers generally expand.
A relatively warm phase between glacial periods during which glaciers and ice sheets generally retreat.
The current major ice age, which began about 2.58 million years ago and includes repeated glacial-interglacial cycles.
The current warm interglacial period, which began approximately 11,700 years ago.
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