Overview
The 8,200 year event, alternatively called the 8.2 kyr event or more simply the 8k event, refers to the last major abrupt climate change, a Northern Hemisphere cooling event that occurred approximately 8,200 years before the present (bp). The 8.2 kyr event is the largest anomaly in the Greenland ice cores during the Holocene (see Holocene climates), a period otherwise marked by a relatively stable climate. Paleoclimate records from Europe, North America, South America, and Africa indicate an abrupt cooling event in the Northern Hemisphere. Separate geologic evidence documents the collapse of the remnants of the Hudson Bay ice dome dam and subsequent catastrophic final drainage of glacial Lakes Agassiz and Ojibway into the Hudson Bay, at approximately the same time. These lakes once occupied northern portions of the Canadian provinces of Manitoba and Ontario, respectively.
A potential atmospheric link between the disappearance of the glacial lakes and the far-field climate...
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LeGrande, A.N. (2009). The 8,200-Year BP Event. In: Gornitz, V. (eds) Encyclopedia of Paleoclimatology and Ancient Environments. Encyclopedia of Earth Sciences Series. Springer, Dordrecht. https://doi.org/10.1007/978-1-4020-4411-3_219
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