USA HISTORY

Detailed explanation-1: -The latest ice age peaked about 20, 000 years ago, when global temperatures were likely about 10°F (5°C) colder than today. At the Pleistocene Ice Age’s peak, massive ice sheets stretched over North America and Eurasia.

Detailed explanation-2: -ice age, also called glacial 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 features of entire continents. A number of major ice ages have occurred throughout Earth history.

Detailed explanation-3: -The Ice Ages began 2.4 million years ago and lasted until 11, 500 years ago. During this time, the earth’s climate repeatedly changed between very cold periods, during which glaciers covered large parts of the world (see map below), and very warm periods during which many of the glaciers melted.

Detailed explanation-4: -Earth’s now steamy Equator was covered with ice 716 million years ago, according to a new study. The finding appears to add solid evidence to the theory of an ancient “snowball Earth.” The discovery hinged on proving that the right rocks had been covered by glaciers in the right place at the right time.

Detailed explanation-5: -Researchers have nailed down the temperature of the last ice age, known as the Last Glacial Maximum of 20, 000 years ago, to about 46 degrees Fahrenheit.