#FYI #ClimateChat #DanMiller #ReneVanWesten #AMOC
René van Westen on his latest Atlantic Meridional Overturning Circulation (AMOC) research.
https://www.youtube.com/watch?v=cBaRscaCBHU
#climate #ClimateScience #climatechange #ClimateEmergency #ClimateCrisis #ClimateBreakdown #climatecatastrophe #globalWarming #globalHeating #ExtremeWeather
#cambioclimatico
La #AMOC se está debilitando. Ya se ha desacelerado un 15%. El riesgo de su colapso se ha subestimado y podría ocurrir en este siglo. Su impacto sería catastrófico y que afectaría al mundo entero durante siglos. Es urgente la reducción de emisiones para mantenerse cerca de los 1,5ºC del acuerdo de París.
https://sternaparadisaea.net/2025/05/20/falling-apart/
(love to ask the author what the cessation of the #AMOC would have for a theoretical effect)
"In the animation of satellite pictures below you can see the sea ice rather dramatically falling apart in mid-April and then again at the end of April.…Is it really the earliest in the satellite record? What makes the ice vulnerable? Composition, thickness, temperature? Is the ocean driving it or the atmosphere or both (it’s usually both), and what makes this year so unusual?"
"The risk of flooding events along the U.S. Northeast coast has doubled since 2005. Now, scientists have discovered that up to 50% of these events occurred because key Atlantic ocean currents are slowing down."
#AMOC-Collapse incoming...
https://www.livescience.com/planet-earth/climate-change/the-decline-of-key-atlantic-currents-is-underway-and-its-been-flooding-parts-of-the-us-for-20-years
New study: The risk of flooding events along the U.S. Northeast coast has doubled since 2005. Now, scientists have discovered that up to 50% of these events occurred because key Atlantic ocean currents are slowing down. #AMOC 🌊
https://www.livescience.com/planet-earth/climate-change/the-decline-of-key-atlantic-currents-is-underway-and-its-been-flooding-parts-of-the-us-for-20-years
SciTech Chronicles. . . . . .May 17th, 2025
#volcanoes #Io #collision #gravitational #AMOC #dilution #mass #expansion #sediment #cooling #ice-sheet #AMOC #Negev #pendants #child #"Tel Malḥata" #SAR #Magellan #metamorphism #subduction
CNN: A crucial system of ocean currents is slowing. It’s already supercharging sea level rise in the US…
#Flooding on the US Northeast coast has risen significantly as a critical network of Atlantic Ocean currents weakens, according to a new study... #AMOC #oceancurrents
#FYI #PaulBeckwith video lecture and literature review #AMOC
"models simulate a significant decline or even disappearance of the BG [...] associated with an expected decrease in freshwater storage, with reduced salinity contrasts between the gyre and both Arctic subsurface waters and freshwater outflow regions."
https://www.youtube.com/watch?v=qxyZmTrDNpY
#climate #ClimateScience #climatechange #ClimateEmergency #ClimateCrisis #ClimateBreakdown #climatecatastrophe #globalWarming #globalHeating #ExtremeWeather
Das #Klima läuft #AMOC - Europas kalte #Zukunft und das Versagen der deutschen #Politik https://www.blaetter.de/ausgabe/2025/april/das-klima-laeuft-amoc
Für alle, denen die Tatsache, dass wir gerade dabei sind unsere Lebensgrundlage zu verspielen, die Dringlichkeit nicht verdeutlicht... Vielleicht hilft das Argument:
Einer Schätzung des Finanzdienstleisters MSCI zufolge werden Klimaschäden, erforderliche Umbauten und die Anpassung an die Erwärmung in den kommenden 25 Jahren weltweit Kosten in Höhe von 25 Bill. US-Dollar verursachen, allein im Immobilienmarkt. Immobilien sind global die wichtigste Klasse von Investitionsgütern. Die drohenden Schäden seien so gewaltig, so der britische „Economist“, dass nicht nur persönlicher Wohlstand Einzelner, sondern das gesamte Weltfinanzsystem in Gefahr sei.
Von @chrisstoecker
https://www.blaetter.de/ausgabe/2025/april/das-klima-laeuft-amoc
Exploring the risks of ‘cascading’ tipping points in a warming world
Tipping elements within the Earth system are increasingly well understood.
Scientists have identified more than 25 parts of the Earth’s #climate system that are likely to have #TippingPoints – thresholds where a small additional change in global warming will cause them to irreversibly shift into a new state.
The “tipping” of these systems – which include the Atlantic Meridional Overturning Circulation (#AMOC), the #Amazon #rainforest and the #Greenland ice sheet – would have profound consequences for both the #biosphere and people.
More recent research suggests that triggering one tipping element could cause subsequent changes in other tipping elements, potentially leading to a #TippingCascade.
For example, a collapsed AMOC could lead to dieback of the Amazon rainforest and hasten the melt of the Greenland ice sheet.
However, the interactions between individual tipping elements – and the ways they might trigger each other – remain largely underexplored.
In a review study, published last year in Earth System Dynamics, we unpack the current state of scientific understanding of the interactions between individual tipping elements.
We find that scientific literature suggests the majority of interactions between tipping elements will lead to further destabilisation of the climate system.
Existing research also indicates that “tipping cascades” could occur even under current #GlobalWarming projections.
Scientific understanding of individual #TippingElements is continuously improving, but more research on their interactions is needed.
@BartVerheggen @Sustainable2050
Ah that makes sense.
So in contrast to what the #NOS quote suggests, it's not so much that the #AMOC causes the climate in #Europe to be warmer than that of (the comparable part of) #Canada. It actually prevents it from being much colder.
(Where "comparable" should then not only be understood in terms of latitude, but also in terms of the east-west exposure to the ocean.)
Good luck science-communicating that ...
Vancouver is located at a similar latitude as Lourdes-de-Blanc-Sablon, but at the west coast of #Canada.
Therefore it receives relatively warm air from the ocean in the winter, which means its winter temperatures are similar to those of Amsterdam.
In fact, despite the absence of an #AMOC equivalent, #Vancouver 's average winter temperature appears to be slightly higher than that of #Amsterdam?
@BartVerheggen Any thoughts?
"Met de kennis van nu is het meest waarschijnlijke scenario nog steeds dat het warmer gaat worden. Alleen is dit een nieuw inzicht dat we niet kunnen negeren", zegt Deltacommissaris Co Verdaas die de werkgroep leidt. Een inzicht met verstrekkende gevolgen. Omdat de veiligheid van waterland Nederland mogelijk in het geding is, leidt de Deltacommissaris de werkgroep.
#amoc
https://nos.nl/nieuwsuur/collectie/13871/artikel/2564907-nieuw-klimaatscenario-baart-onderzoekers-zorgen-juist-kouder-nederland
SciTech Chronicles. . . . . . . . .April 25th, 2025
#LiSA # perovskite #copper #electrocatalysts #CspZ #structure #"immune response" #trials #"daily cycle" #regolith #protons #hydrogen #AMOC #"warming hole" #tropics "Northern Hemisphere" #"deep aquifers" #karstified #sandstone #"natural replenishment"
Finally, the Netherlands is seriously looking into the effects of a possible weakening/collapse of the Atlantic Ocean heat circulation. This could mean significantly colder winters for the Netherlands.
https://nos.nl/nieuwsuur/collectie/13871/artikel/2564907-nieuw-klimaatscenario-baart-onderzoekers-zorgen-juist-kouder-nederland
#ClimateChange #amoc #atlantic #extremeweather
The @NOS is picking up on the news about a potential breakdown of the Nort Atlantic Ocean Circulation #AMOC
But just to be clear (as it is not specifically mentioned in the article): such a cooling over Northwestern Europe would be *caused* by global warming, leading to excessive melting of the Greenland ice cap, thawing of permafrost and a large influx of freshwater into the Atlantic Ocean.
Nor is this scenario entirely new: already in 2004 there was a major Hollywood movie around this idea ( The Day after Tomorrow).
#FYI #StefanRahmstorf #AMOC #AMOCshutdown
Professor Stefan Rahmstorf on
- What the AMOC is and why it is being ignored
- The impacts of a changing AMOC for both the environment and humanity
- What can be done to prevent this change
- Who needs to take action"
https://www.youtube.com/watch?v=9YKbzpl6A44
#climate #ClimateScience #climatechange #ClimateEmergency #ClimateCrisis #ClimateBreakdown #climatecatastrophe #globalWarming #globalHeating #ExtremeWeather
The #Forest After Tomorrow:
Projecting the Impact of a Collapsing Atlantic Meridional Overturning Circulation on European #Tree-Species Distributions
...As opposed to the classic climate-change scenario supporting Mediterranean species in Central Europe, projected European tree-species portfolios consisted of a higher share of boreal, cold-tolerant species in the inactive AMOC scenario.....while others such as the spruce almost went extinct.
#amoc #ClimateCrisis
In 1989 James Burke produced a documentary named "After the Warming" which highlighted the effect of slowing the global thermohaline circulation current.
"That was the key to everything. Change the saltiness of the Atlantic and you change the world's weather."
#AMOC #GlobalWarming #ClimateChange
