The Younger Dryas cold period began in less than 100 years and lasted roughly 1,300 years, occurring approximately 12,900 to 11,700 years ago.
Sources
- Younger Dryas | Definition, Causes, & Termination (britannica.com)
- https://www.ebsco.com/research-starters/earth-and-atmospheric-sciences/younger-dryas (ebsco.com)
- https://www.sciencedirect.com/science/article/abs/pii/S1040618211001480 (sciencedirect.com)
- https://www.science.org/doi/abs/10.1126/science.1160148 (science.org)
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