 | This article's lead section may be too short to adequately summarize the key points. (September 2018) |
The Holocene Climate Optimum (HCO) was a warm period in the first half of the Holocene epoch, that occurred in the interval roughly 9,500 to 5,500 years BP,[1] with a thermal maximum around 8000 years BP. It has also been known by many other names, such as Altithermal, Climatic Optimum, Holocene Megathermal, Holocene Optimum, Holocene Thermal Maximum, Holocene global thermal maximum, Hypsithermal, and Mid-Holocene Warm Period.
The warm period was followed by a gradual decline, of about 0.1 to 0.3 °C per millennium, until about two centuries ago. However, on a sub-millennial scale, there were regional warm periods superimposed on this decline.[2][3][4]
- For other temperature fluctuations, see temperature record.
- For other past climate fluctuation, see paleoclimatology.
- For the pollen zone and Blytt–Sernander period, associated with the climate optimum, see Atlantic (period).
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- ^ Revkin, Andrew (22 April 2013). "Study Charts 2,000 Years of Continental Climate Change". New York Times Dot Earth. Archived from the original on 26 December 2021. Retrieved 26 December 2021.
- ^ Chandler, David (16 May 2007). "Climate myths: It's been far warmer in the past, what's the big deal?". New Scientist. Archived from the original on 26 December 2021. Retrieved 26 December 2021.
- ^ Neukom, R; Steiger, N; Gómez-Navarro, J.J (24 July 2019). "No evidence for globally coherent warm and cold periods over the preindustrial Common Era". Nature. 571 (7766): 550–554. Bibcode:2019Natur.571..550N. doi:10.1038/s41586-019-1401-2. PMID 31341300. S2CID 198494930. Archived from the original on 19 June 2024. Retrieved 26 December 2021.