5 days ago · Ice 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 …

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 …

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, …

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.

Apr 16, 2023 · 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 …

May 24, 2017 · 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 …

What is an Ice Age? Broadly speaking, an ice age is an interval of time during which large areas of the Earth's surface are covered with ice sheets (large continental glaciers).

Feb 14, 2023 · An ice age is a period of long-term reduction in the temperature of Earth's climate, resulting in an expansion of the continental ice sheets, polar ice sheets and mountain glaciers.

Jan 3, 2017 · The current ice age, known as the Pliocene-Quaternary glaciation, started about 2.58 million years ago during the late Pliocene, when the spread of ice sheets in the Northern Hemisphere …

An ice age is a period of time where global temperatures drop so significantly that glaciers advance and encompass over one third of Earth’s surface both laterally and longitudinally. [2]