Is there evidence for a 4.2 kaBP event in the northern North Atlantic region?
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We review paleoceanographic and paleoclimatic records from the northern North Atlantic to assess the nature of climatic conditions at 4.2 ka BP, which has been identified as a time of exceptional climatic anomalies in many parts of the world. The northern North Atlantic region experienced relatively warm conditions from 6 to 8 ka BP, followed by a general decline in temperatures after ∼5 ka BP, which led to the onset of neoglaciation. Over the last 5000 years, a series of multi-decadal- to century-scale fluctuations occurred, superimposed on an overall decline in temperature. Although a few records do show a glacial advance around 4.2 ka BP, because they are not widespread we interpret them as local events – simply one glacial advance of many that occurred in response to the overall climatic deterioration that characterized the late Holocene.
CitationJostein, Bradley. Is there evidence for a 4.2 kaBP event in the northern North Atlantic region?. Climate of the Past. 2019;15(5):1665–1676.
PublisherEuropean Geosciences Union
SubjectClimate change / Klimaendringer
Copyright 2019 The Author(s)