About 14,800 results
Open links in new tab
  1. Ice age - Wikipedia

    An ice age is a term describing periods of time when the reduction in the temperature of Earth 's surface and atmosphere results in the presence or expansion of continental and polar ice sheets and alpine …

  2. How Long Was the Ice Age? | Years, Period, & Earth | Britannica

    Mar 29, 2026 · When most people think of ice ages, or “glacial ages,” they often envision cavemen, woolly mammoths, and vast plains of ice—such as those that occurred during the Pleistocene (about …

  3. Ice Age - Definition & Timeline | HISTORY

    Mar 11, 2015 · An ice age is a period of colder global temperatures and recurring glacial expansion capable of lasting hundreds of millions of years.

  4. Timeline: Ice Age - World History Encyclopedia

    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 …

  5. The Ice Age - Causes, FAQ - Geology Science

    Nov 23, 2025 · The Ice Age, also known as the Pleistocene Epoch, was a period of geological time that lasted from about 2.6 million years ago to 11,700 years ago. It was characterized by the widespread …

  6. Ice age - New World Encyclopedia

    The general term "ice age" or, more precisely, "glacial age" denotes a geological period of long-term reduction in the temperature of the Earth 's surface and atmosphere, resulting in an expansion of …

  7. Ice Age - WorldAtlas

    May 15, 2023 · Ice ages lead to the formation of new features on the Earth's surface like glacial lakes. An Ice Age, also known as a glacial age, happens when Earth's surface and atmospheric …

  8. What is a ice age? - The Institute for Environmental Research and …

    Jun 16, 2025 · An ice age is a prolonged period of reduced temperature on Earth, resulting in an expansion of continental ice sheets, glaciers, and sea ice. These periods, lasting millions of years, …

  9. What Were the Ice Ages? - Expedition Magazine

    We tend to think of the Ice Ages (or the Pleistocene, the geologically correct term for the height of the Ice Ages) as a time of bitter cold, a time long past.

  10. Ice Ages – What are they and what causes them? - Utah Geological …

    Dec 22, 2011 · What is an ice age? An ice age is a long interval of time (millions to tens of millions of years) when global temperatures are relatively cold and large areas of the Earth are covered by …