Greenland ice sheet temperatures interpreted with 18O isotope from 6 ice cores (Vinther, B., et al., 2009)
The neoglaciation ("renewed glaciation") describes the documented cooling trend in the Earth's climate during the Holocene, following the retreat of the Wisconsin glaciation, the most recent glacial period. Neoglaciation has followed the hypsithermal or Holocene Climatic Optimum, the warmest point in the Earth's climate during the current interglacial stage, excluding the global warming-induced temperature increase starting in the 20th century. The neoglaciation has no well-marked universal beginning: local conditions and ecological inertia affected the onset of detectably cooler (and wetter) conditions.
Driven inexorably by the Milankovitch cycle, cooler summers in higher latitudes of North America, which would cease to completely melt the annual snowfall, were masked at first by the presence of the slowly disappearing continental ice sheets, which persisted long after the astronomically calculated moment of maximum summer warmth: "the neoglaciation can be said to have begun when the cooling caught up with the warming", remarked E. C. Pielou.[1] With the close of the "Little Ice Age" (mid-14th to late 19th centuries), neoglaciation appears to have been reversed in the late 20th century, evidently caused by anthropogenic global warming. Neoglaciation had been marked by a retreat from the warm conditions of the Climatic Optimum and the advance or reformation of glaciers that had not existed since the last ice age. In the mountains of western North America, montane glaciers that had completely melted reformed shortly before 5000 BP.[2] The most severe part of the best documented neoglacial period, especially in Europe and the North Atlantic, is termed the "Little Ice Age".
Holocene climate reconstructions and glacial-advance records from western Canada. Data compiled from published studies[3][4][5]
In North America, neoglaciation had ecological effects in the spread of muskeg on flat, poorly drained land, such as the bed of recently drained Lake Agassiz and in the Hudson Bay lowlands, in the retreat of grassland before an advancing forest border in the Great Plains, and in shifting ranges of forest trees and diagnostic plant species (identified through palynology).
^E.C. Pielou 1991:291; S.C. Porter and G.H. Denton, "Chronology of the neo-glaciation in the North American cordillera", American Journal of Science265 (1967:177-210), noted in E.C. Pielou, After the Ice Age: The Return of Life to Glaciated North America (Chicago: University of Chicago Press) 1991:15 note 13. Pielou discusses the neoglaciation in ch. 14 "The Neoglaciation" pp 291-310.
^Pielou 1991:291; geomorphology of glacial moraines suggest that mountain glaciers in British Columbia have advanced and receded twice more recently, with advances peaking about 2800 BP and 300 BP (noting G.H. Denton and W. Karlen, ""Holocene climatic variations— their pattern and possible cause", Quaternary Research3 1973:155-205), and J.M. Ryder and B. Thomson, "Neoglaciation in the southern Coast Mountains of British Columbia: chronology prior to the Late Neoglacial Maximum", Canadian Journal of Earth Sciences23 1986:273-87.
^Gavin, Daniel G.; Henderson, Andrew C.G.; Westover, Karlyn S.; Fritz, Sherilyn C.; Walker, Ian R.; Leng, Melanie J.; Hu, Feng Sheng (2011). "Abrupt Holocene climate change and potential response to solar forcing in western Canada". Quaternary Science Reviews. 30 (9–10): 1243–1255. Bibcode:2011QSRv...30.1243G. doi:10.1016/j.quascirev.2011.03.003.
^Menounos, Brian; Osborn, Gerald; Clague, John J.; Luckman, Brian H. (2009). "Latest Pleistocene and Holocene glacier fluctuations in western Canada". Quaternary Science Reviews. 28 (21–22): 2049–2074. Bibcode:2009QSRv...28.2049M. doi:10.1016/j.quascirev.2008.10.018.
^Osborn, Gerald; Menounos, Brian; Ryane, Chanone; Riedel, Jon; Clague, John J.; Koch, Johannes; Clark, Douglas; Scott, Kevin; Davis, P. Thompson (2012). "Latest Pleistocene and Holocene glacier fluctuations on Mount Baker, Washington". Quaternary Science Reviews. 49: 33–51. Bibcode:2012QSRv...49...33O. doi:10.1016/j.quascirev.2012.06.004.
The neoglaciation ("renewed glaciation") describes the documented cooling trend in the Earth's climate during the Holocene, following the retreat of the...
Cold Epoch (also referred to as Iron Age climate pessimum or Iron Age neoglaciation) was a period of unusually cold climate in the North Atlantic region...
global climate entered a broad trend of very gradual cooling known as Neoglaciation, which lasted from the end of the HCO to before the Industrial Revolution...
Meltwater from the glacial prehistoric Lake Agassiz contributed to the neoglaciation during the Holocene, which resulted in an uptick of glacial activity...
hypsithermal; his usage of "Little Ice Age" has been superseded by "Neoglaciation". Mann, Michael (2003). "Little Ice Age" (PDF). In MacCracken, Michael...
Sheet, causing rapid melting and destabilization events. Following the Neoglaciation, the Jakobshavn outlet formed a floating ice tongue around 2000 years...
climate in the North Atlantic region lasting from c. 950 to c. 1250 Neoglaciation Timeline of glaciation – Chronology of the major ice ages of the Earth...
evidence that the glacier had retreated before it advanced during the neoglaciation. Near the river bed there is also an area of 4–5 feet (1.2–1.5 m) high...
being spurred on by the reduced amount of natural resources during the neoglaciation. The Jōmon period continued up to 300 BCE in present-day Aomori Prefecture...
Glacial Maximum or under Mount Edziza's ice cap during the height of the neoglaciation when it was much larger in area than it is now. As the molten basalt...
highest cirques. This readvance records the onset of Neoglaciation in the Sierra Nevada. Neoglaciation in the range culminated during the "Little Ice Age...
Peak, the Spectrum Range and the Armadillo Highlands as part of the neoglaciation. As these glaciers advanced they built up to 18-metre-high (59-foot)...
dozen small cirque glaciers seen today were formed during a subsequent neoglaciation 5000 years ago. Mount Moran has five such glaciers with Triple Glaciers...
Seltzer, Geoffrey O.; Rodbell, Donald T. (2005). "Delta progradation and Neoglaciation, Laguna Parón, Cordillera Blanca, Peru". Journal of Quaternary Science...