January 16, 2026
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0:49Now PlayingAt the last glacial maximum, North America wasn’t just cold...it was entombed.
Two massive ice sheets dominated the continent: the Laurentide, rivaling Antarctica in scale, and the Cordilleran, larger than modern Greenland. As the ice age ended, more ice melted than what exists on Earth today.
This wasn’t a gentle thaw. It was the loss of an entire frozen world.
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