An ice age is a long period of reduction in the temperature of the Earth's surface and atmosphere. Ice Age may also refer to: . Science. Last Glacial Period, the most recent glacial period (115,000 to 11,700 years ago) Penultimate Glacial Period, the glacial period that occurred before the Last Glacial Period. Late Cenozoic Ice Age, the geologic period of the last 33.9 million years. Little Ice Age, a period of relative cold in certain regions from roughly 1450–1480.
https://en.wikipedia.org/wiki/Ice_Age