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#atlanticmeridionaloverturningcirculation

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Public *
Daniele de Rigo

7/

Presentation (~34 min) by @rahmstorf on #ClimateChange and the changing #AtlanticMeridionalOverturningCirculation (#AMOC) [3]

(archived version:
web.archive.org/web/2024060913 )

concludes corroborating some key points (min. 33):

"The #AMOC is weakening

The AMOC has a #TippingPoint"

while noting on this tipping point how "it is still uncertain how close it is" and how recent studies suggest that the "risk is larger than we thought"

This recommends that a "precautionary principle should apply"

Public
michael

19-APR-2024
Warming of Antarctic deep-sea waters contribute to sea level rise in North Atlantic, study finds

Analysis of mooring observations and hydrographic data suggest the #AtlanticMeridionalOverturningCirculation deep water limb in the #NorthAtlantic has weakened. Two decades of continual observations provide a greater understanding of the #Earth’s #climate regulating system.

eurekalert.org/news-releases/1 #science #ClimateCatastrophe #AMOC

EurekAlert!Warming of Antarctic deep-sea waters contribute to sea level rise in North Atlantic, study finds<p><em>Analysis of mooring observations and hydrographic data suggest the Atlantic Meridional Overturning Circulation deep water limb in the North Atlantic has weakened. Two decades of continual observations provide a greater understanding of the Earth’s climate regulating system.</em></p>
Continued thread
Public
Daniele de Rigo

5/

#References

[1] Ditlevsen, P., Ditlevsen, S., 2023. Warning of a forthcoming collapse of the Atlantic meridional overturning circulation. Nature Communications 14 (1), 4254+. doi.org/10.1038/s41467-023-398

[2] Boers, N., 2021. Observation-based early-warning signals for a collapse of the Atlantic Meridional Overturning Circulation. Nature Climate Change 11 (8) 680–688. doi.org/10.1038/s41558-021-010

Available free access versions: scholar.google.com/scholar?clu

#DOI#AtlanticMeridionalOverturningCirculation
Public *
Daniele de Rigo

1/

#TippingPoint #research: potential "forthcoming collapse of the #AtlanticMeridionalOverturningCirculation (#AMOC)" [1]

"major concern as it is one of the most important tipping elements in #Earth’s #climate system

[...] model studies and #paleoclimatic reconstructions indicate that the strongest abrupt climate fluctuations [...] are connected to the bimodal nature of the AMOC" [1]

Comments:

realclimate.org/index.php/arch (@rahmstorf)

theguardian.com/environment/20

On wording: fediscience.org/@rahmstorf/110

RealClimate | Climate science from climate scientists... · RealClimate: What is happening in the Atlantic Ocean to the AMOC?RealClimate: For various reasons I'm motivated to provide an update on my current thinking regarding the slowdown and tipping point of the Atlantic Meridional Overturning Circulation (AMOC). I attended a two-day AMOC session at the IUGG Conference the week before last, there's been interesting new papers, and in the light of that I have been changing
Replied in thread
Public *
HistoPol (#HP) 🏴 🇺🇸 🏴

@rahmstorf

Under a different name, there is now more research about this:

"We found the collapse of this system—called the Atlantic meridional overturning circulation—would shift the Earth's climate to a more La Niña-like state. This would mean more flooding rains over eastern #Australia and worse droughts and bushfire seasons over southwest United States."
#AtlanticMeridionalOverturningCirculation #AMOC
#NothAtlanticConveyorBelt

phys.org/news/2022-06-huge-atl

Phys.orgA huge Atlantic ocean current is slowing down—if it collapses, La Niña could become the norm for AustraliaBy Matthew England
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