Homo sapiens has never experienced an ice age.
The last Ice Age ended about 11,500 years ago. There was also a Little Ice Age 1300-1850 AD.
From Felix: "Global warming is a myth. Most of the things we see happening to our weather lately have nothing to do with global warming. They’re part of a natural cycle. The fact is that ice ages recur in a dependable, predictable cycle that’s about to repeat itself. The next ice age could begin in our lifetimes."
The cycle was discovered in the 1970s by a group called CLIMAP (Climate Long- Range Investigation, Mapping, and Prediction). They looked at deep sea cores for the past 500,000 years. During the last half million years, they found, ice ages have begun or ended, abruptly, just like clockwork, about every 11,500 years.
Q. I almost hate to ask this, but when did the last ice age end?
A. That’s the problem. The last ice age ended almost exactly 11,500 years ago. Which means that the next ice age could—no, I say should— begin any day.