Changes in the mass of the Greenland Ice Sheet alter the climate, so today’s climate could still affect its size for thousands of years.
PLOS
Changes in the mass of the Greenland Ice Sheet alter the climate, so today’s climate could still affect its size for thousands of years.
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Article URL: https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0259816
Post title: The impact of paleontology on the current and future evolution of the Greenland Ice Sheet
Author Country: Germany, China, Netherlands
Expense: This work was supported through a grant (Global Sea Level Change since Mid Holocene: Background Trends and Climate-Ice Response) from Deutsche Forschungsgemeinschaft (DFG) as part of the Priority Program Special Priority (SPP) -1889 ‘Regional Sea Level Change and Society’ (SeaLevel). C. Rodehacke has been funded through the ZUWEISS project of the German Federal Ministry of Education and Research (Bundesministerium fur Bildung und Forschung: BMBF) (funding agreement 01LS1612A) and through the National Center for Climate Research ( NCFK, Nationalt Center for Klimaforskning) is provided by the State of Denmark. The HY, SX and XL are funded in part by the open fund of the State Key Laboratory of Loess and Quaternary Geology, Institute of the Earth Environment, CAS (SKLLQG1920). The development of PISM was supported by NASA grant NNX17AG65G and NSF grant PLR-1603799 and PLR-1644277.
DOI
10.1371 / journal.pone.0259816
ARTICLE TITLE
The impact of paleontology on the current and future evolution of the Greenland Ice Sheet
ARTICLE PUBLICATION DATE
January 19, 2022
REPORT REPORT
The authors have stated that no competing interests exist.
Here’s a summary of the no-wall paper:
Using simulation-based temporal climates from the Alfred Wegener Institute Earth System Model (AWI-ESM), we simulate the evolution of the Greenland Ice Sheet (GrIS) since the last ice age (125 ka , kiloyear ago) to AD 2100 with the Parallel Ice Plate Model (PISM). The impact of paleontological climates, especially Holocene climates, on the present and future evolution of GrIS is investigated. Our simulations of the past show close agreement with recent-related reconstructions of peaks in Greenland’s ice mass and climate. The maximum and minimum ice masses are about 18–17 ka and 6–5 ka behind the respective poles in climate by several thousand years, implying that GrIS’s ice mass response is much slower than that of other poles. the climate changes. As the climate of Greenland became colder from the Holocene Thermal Maximum (i.e. 8 ka) to the Pre-Industrial period, our simulations imply that GrIS underwent evolution from the mid Holocene to the industrial era . Because of this background trend, GrIS remained massive until the second half of the 20th century, although anthropogenic warming began around 1850 AD. This is also consistent with observational evidence that the mass loss of GrIS did not begin earlier than the end of the 20th century. Our results emphasize that the current evolution of GrIS is not solely controlled by recent climate changes, but also influenced by paleontology, especially the relatively warm Holocene climate. We propose that GrIS is not in equilibrium during the entire Holocene and that the slow response to Holocene climate needs to be represented in ice sheet simulations to accurately predict the loss of ice mass and thus sea level. offer.
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