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Geology: How cold did temperatures get in the Ice Age?
I'm curious about geology. Specifically, how cold did temperatures get during the Ice Age?
The Ice Age is actually a period of several glaciations that occurred over millions of years, so temperatures varied quite a bit. However, during the Last Glacial Maximum, which occurred about 20,000 years ago, global temperatures were an average of about 4-5°C (7-9°F) cooler than today.