The Younger Dryas was a catastrophic rapid cooling event around 12,900 years ago, not isolated but part of a series of climate swings. The onset was abrupt and catastrophic, reversing the deglaciation warming, until temperatures shot up nearly instantaneously.
Younger Dryas: Catastrophic rapid cooling event 12,900 years ago
Key facts
- The Younger Dryas was not an isolated event; there were events leading up to and following it that were collected around that period
- The onset of the Younger Dryas was catastrophic, marking a rapid cooling event around 12,900 years ago
- About 1,300 years before the Younger Dryas appears, there was an earlier event
- The Younger Dryas involved the sudden refreezing of the global climate, terminating the flow of meltwater from ice sheets
- Deep sea sediment cores and lake records show the transition was the most obvious feature of the entire record
- The end of the Younger Dryas saw temperature shoot up almost instantaneously into modern Holocene averages
- The Younger Dryas represents a significant climate reversal that interrupted the deglaciation warming
Sources
The Younger Dryas impact hypothesis: A requiem - ScienceDirectsciencedirect.com
... catastrophic extraterrestrial event 12,900 years ago. Here we present a review of the impact hypothesis, including its evolution and current variants, and ...
Understanding the Younger Dryas: Causes and Characteristicsprehistoricpassage.com
... cooling in much of the globe starting around 12,900 years ago. As it ... catastrophic explanations. References. Bahr, A., Hoffmann, J ...
Younger Dryas - Wikipediaen.wikipedia.org
The 2004 film, The Day After Tomorrow depicts catastrophic climatic effects ... See also. edit · 8.2 kiloyear climate event – Rapid global cooling about 8,200 ...
The Younger Dryas comet-impact hypothesis: gem of an idea or ...realclimate.org
... catastrophic floods and fires to this potential event. Each of ... not necessarily catastrophic). It's a sufficiently significant shift ...
Why won't this debate about an ancient cold snap die? - Science Newssciencenews.org
The Younger Dryas impact hypothesis: a cosmic catastrophe. Journal of Quaternary Science. Vol. 29, August 8, 2014, p. 515. doi: 10.1002/jqs ...
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