Atlantic Ocean sensors confirm a consistent two-decade decline in the Atlantic Meridional Overturning Circulation. Data from four mooring arrays across the western boundary verify a weakening transport signal below 1,000 meters, validating concerns of long-term circulation shifts.
Atlantic current shows two-decade decline across four deep-ocean monitoring sites
A paper published in the journal Science Advances is adding to the growing body of research showing that the Atlantic Meridional Overturning Circulation (AMOC) is weakening. In this new study, instead of relying mainly on computer models, scientists used two decades of direct ocean measurements to confirm the decline.
phys.org
April 20, 2026 at 4:07 AM
Atlantic Ocean sensors confirm a consistent two-decade decline in the Atlantic Meridional Overturning Circulation. Data from four mooring arrays across the western boundary verify a weakening transport signal below 1,000 meters, validating concerns of long-term circulation shifts.
Jeezus christ on a cracker! Living on earth has certainly lost its appeal.
ground.news/article/scie...
ground.news/article/scie...
Scientists Warn Key Ocean Current Collapse Could Bring Ice Age
Iceland has declared the potential collapse of the Atlantic Meridional Overturning Circulation (AMOC), a major ocean current system that transports warm tropical water northward and moderates European...
ground.news
November 15, 2025 at 3:51 AM
Jeezus christ on a cracker! Living on earth has certainly lost its appeal.
ground.news/article/scie...
ground.news/article/scie...
What is the global ocean overturning circulation, and why does it matter for you?
Here’s a great short explainer by the Australian Centre for Excellence in Antarctic Science.
Did you know a slowing ocean overturning circulation could also affect your life?
antarctic.org.au/new-aceas-ex...
Here’s a great short explainer by the Australian Centre for Excellence in Antarctic Science.
Did you know a slowing ocean overturning circulation could also affect your life?
antarctic.org.au/new-aceas-ex...
New ACEAS Explainer highlights risks of slowing global ocean overturning circulation - ACEAS
The Australian Centre for Excellence in Antarctic Science (ACEAS) today published a new Explainer on the Meridional Overturning Circulation (MOC) – a vast system of ocean currents that underpins Earth...
antarctic.org.au
December 21, 2025 at 6:21 AM
What is the global ocean overturning circulation, and why does it matter for you?
Here’s a great short explainer by the Australian Centre for Excellence in Antarctic Science.
Did you know a slowing ocean overturning circulation could also affect your life?
antarctic.org.au/new-aceas-ex...
Here’s a great short explainer by the Australian Centre for Excellence in Antarctic Science.
Did you know a slowing ocean overturning circulation could also affect your life?
antarctic.org.au/new-aceas-ex...
High resolution images from satellite and from eddy-resolving ocean circulation models point to an ongoing decline of the Atlantic overturning circulation, a key ocean current for our climate. Read more about it in my new blog article. 🌊
www.realclimate.org/index.php/ar...
www.realclimate.org/index.php/ar...
RealClimate: High-resolution ‘fingerprint’ images reveal a weakening Atlantic Ocean circulation (AMOC)
The #AMOC is the reason for Europe’s mild climate. Evidence that it is slowing has been piling up over the years – it now is likely at its weakest in at least a millennium, and it may even be approach...
www.realclimate.org
October 12, 2025 at 11:15 AM
High resolution images from satellite and from eddy-resolving ocean circulation models point to an ongoing decline of the Atlantic overturning circulation, a key ocean current for our climate. Read more about it in my new blog article. 🌊
www.realclimate.org/index.php/ar...
www.realclimate.org/index.php/ar...
Fascinating and important for our future: the European Space Agency ESA plans to monitor changes in the Atlantic Ocean Circulation #AMOC from satellite with a new gravity mission.
That is important since the AMOC may be approaching a dangerous #tippingpoint. 🌊
www.esa.int/Applications...
That is important since the AMOC may be approaching a dangerous #tippingpoint. 🌊
www.esa.int/Applications...
New ESA gravity mission to detect weakening ocean conveyor
At the Living Planet Symposium, attendees have been hearing how ESA’s Next Generation Gravity Mission could provide the first opportunity to directly track a vital ocean circulation system that warms ...
www.esa.int
July 7, 2025 at 6:46 AM
Fascinating and important for our future: the European Space Agency ESA plans to monitor changes in the Atlantic Ocean Circulation #AMOC from satellite with a new gravity mission.
That is important since the AMOC may be approaching a dangerous #tippingpoint. 🌊
www.esa.int/Applications...
That is important since the AMOC may be approaching a dangerous #tippingpoint. 🌊
www.esa.int/Applications...
Is the Atlantic Ocean circulation close to tipping?
Hear the latest science as I presented it last month at the ATLAS25 event in Helsinki.
Let me know if anything is unclear, or if you see good reasons why your government shouldn't immediately act on this. 🌊
youtu.be/ULJXqOZuY-8
Hear the latest science as I presented it last month at the ATLAS25 event in Helsinki.
Let me know if anything is unclear, or if you see good reasons why your government shouldn't immediately act on this. 🌊
youtu.be/ULJXqOZuY-8
Is the Atlantic Ocean circulation close to tipping?
YouTube video by Earth System Analysis - Potsdam Institute
youtu.be
November 16, 2025 at 3:35 PM
Is the Atlantic Ocean circulation close to tipping?
Hear the latest science as I presented it last month at the ATLAS25 event in Helsinki.
Let me know if anything is unclear, or if you see good reasons why your government shouldn't immediately act on this. 🌊
youtu.be/ULJXqOZuY-8
Hear the latest science as I presented it last month at the ATLAS25 event in Helsinki.
Let me know if anything is unclear, or if you see good reasons why your government shouldn't immediately act on this. 🌊
youtu.be/ULJXqOZuY-8
Das Gute ist, sollte Deutschland einfrieren, tut es dies schuldenfrei...
Atlantic Ocean circulation nearing ‘devastating’ tipping point, study finds | Oceans | The Guardian
www.theguardian.com/environment/...
Atlantic Ocean circulation nearing ‘devastating’ tipping point, study finds | Oceans | The Guardian
www.theguardian.com/environment/...
Atlantic Ocean circulation nearing ‘devastating’ tipping point, study finds
Collapse in system of currents that helps regulate global climate would be at such speed that adaptation would be impossible
www.theguardian.com
February 11, 2024 at 5:56 PM
Das Gute ist, sollte Deutschland einfrieren, tut es dies schuldenfrei...
Atlantic Ocean circulation nearing ‘devastating’ tipping point, study finds | Oceans | The Guardian
www.theguardian.com/environment/...
Atlantic Ocean circulation nearing ‘devastating’ tipping point, study finds | Oceans | The Guardian
www.theguardian.com/environment/...
New study finds the "canary in the coal mine" for the #AMOC: a consistent decline of the western overturning circulation, down from 20 to 15 Sv during 2004-2023 at 26° N. 🌊
AMOC "could be at or near a critical tipping point, potentially leading to its collapse".
www.science.org/doi/10.1126/...
AMOC "could be at or near a critical tipping point, potentially leading to its collapse".
www.science.org/doi/10.1126/...
Meridionally consistent decline in the observed western boundary contribution to the Atlantic Meridional Overturning Circulation
Western boundary observations in the Atlantic suggest a meridionally consistent decline in the ocean overturning circulation.
www.science.org
April 9, 2026 at 7:47 AM
New study finds the "canary in the coal mine" for the #AMOC: a consistent decline of the western overturning circulation, down from 20 to 15 Sv during 2004-2023 at 26° N. 🌊
AMOC "could be at or near a critical tipping point, potentially leading to its collapse".
www.science.org/doi/10.1126/...
AMOC "could be at or near a critical tipping point, potentially leading to its collapse".
www.science.org/doi/10.1126/...
Sorry to add to the current list of worries, but this is terrifying www.icm.csic.es/en/news/majo...
Major reversal in ocean circulation detected in the Southern Ocean, with key climate implications | Institut de Ciències del Mar
www.icm.csic.es
July 6, 2025 at 7:17 AM
Sorry to add to the current list of worries, but this is terrifying www.icm.csic.es/en/news/majo...
Climate scientists are also obsessed with Greenland, not because of the Mercator projection, but because the melting of the Greenland ice sheet is going to raise sea levels significantly, change ocean circulation, and be generally very bad for humanity.
January 21, 2026 at 8:04 PM
Climate scientists are also obsessed with Greenland, not because of the Mercator projection, but because the melting of the Greenland ice sheet is going to raise sea levels significantly, change ocean circulation, and be generally very bad for humanity.
Everyone, don’t fall for that fake story about SMOC reversal; the actual paper says nothing about Southern Ocean overturning circulation or deep water formation.
See John Kennedy’s thread.
See John Kennedy’s thread.
Note that the words “reversal”, “circulation”, “collapse”, and “SMOC” do not appear in the paper, only the press release.
www.pnas.org/doi/10.1073/...
www.pnas.org/doi/10.1073/...
July 7, 2025 at 4:35 PM
Everyone, don’t fall for that fake story about SMOC reversal; the actual paper says nothing about Southern Ocean overturning circulation or deep water formation.
See John Kennedy’s thread.
See John Kennedy’s thread.
A sub-field of science looks at whether the Atlantic ocean circulation #AMOC has weakened. Direct measurements suggest yes but only started in 2004. So people look at temperature and salinity data.
A new study finds a robust slowdown fingerprint at 1000–2000 m depth.
www.nature.com/articles/s43...
A new study finds a robust slowdown fingerprint at 1000–2000 m depth.
www.nature.com/articles/s43...
Equatorial Atlantic mid-depth warming indicates Atlantic meridional overturning circulation slowdown - Communications Earth & Environment
Mid-depth warming in the equatorial Atlantic Ocean serves as a fingerprint of a slowdown of the Atlantic Meridional Overturning Circulation on decadal scales, according to ocean model experiments, and...
www.nature.com
November 28, 2025 at 10:45 AM
A sub-field of science looks at whether the Atlantic ocean circulation #AMOC has weakened. Direct measurements suggest yes but only started in 2004. So people look at temperature and salinity data.
A new study finds a robust slowdown fingerprint at 1000–2000 m depth.
www.nature.com/articles/s43...
A new study finds a robust slowdown fingerprint at 1000–2000 m depth.
www.nature.com/articles/s43...
“The stunning reversal of ocean circulation in the Southern Hemisphere confirms the global climate system has entered a catastrophic phase>'
This is very very bad news: www.intellinews.com/southern-oce...
This is very very bad news: www.intellinews.com/southern-oce...
Southern Ocean current reverses for first time, signalling risk of climate system collapse
A major ocean current in the Southern Hemisphere has reversed direction for the first time in recorded history, in what climatologists are calling a ...
www.intellinews.com
July 7, 2025 at 4:08 AM
“The stunning reversal of ocean circulation in the Southern Hemisphere confirms the global climate system has entered a catastrophic phase>'
This is very very bad news: www.intellinews.com/southern-oce...
This is very very bad news: www.intellinews.com/southern-oce...
Wo bleiben Eilmeldungen & Sondersendungen?
AMOC (Golfstrom): Kurz vor dem Kipppunkt oder sogar bereits erreicht?
Folgen wären u.A. der Kollaps großer Teile der globalen Landwirtschaft, in Europa, Asien, Afrika, massiver Meeresspiegelanstieg, eine gigantische Energiekrise, ...
#Klimakatastrophe
AMOC (Golfstrom): Kurz vor dem Kipppunkt oder sogar bereits erreicht?
Folgen wären u.A. der Kollaps großer Teile der globalen Landwirtschaft, in Europa, Asien, Afrika, massiver Meeresspiegelanstieg, eine gigantische Energiekrise, ...
#Klimakatastrophe
Meridionally consistent decline in the observed western boundary contribution to the Atlantic Meridional Overturning Circulation
Western boundary observations in the Atlantic suggest a meridionally consistent decline in the ocean overturning circulation.
www.science.org
April 16, 2026 at 4:51 PM
Wo bleiben Eilmeldungen & Sondersendungen?
AMOC (Golfstrom): Kurz vor dem Kipppunkt oder sogar bereits erreicht?
Folgen wären u.A. der Kollaps großer Teile der globalen Landwirtschaft, in Europa, Asien, Afrika, massiver Meeresspiegelanstieg, eine gigantische Energiekrise, ...
#Klimakatastrophe
AMOC (Golfstrom): Kurz vor dem Kipppunkt oder sogar bereits erreicht?
Folgen wären u.A. der Kollaps großer Teile der globalen Landwirtschaft, in Europa, Asien, Afrika, massiver Meeresspiegelanstieg, eine gigantische Energiekrise, ...
#Klimakatastrophe
What l, and I mean What, TAF is going on?
July 6, 2025 at 11:38 AM
What l, and I mean What, TAF is going on?
Atlantic Meridional Overturning Circulation (AMOC) is a system of deep ocean currents sending warm water north and cold water south in the Atlantic Ocean.
AMOC now weaker than any other time in the past millennium.
#climate
www.unsw.edu.au/newsroom/new...
AMOC now weaker than any other time in the past millennium.
#climate
www.unsw.edu.au/newsroom/new...
Meltwater from Greenland and the Arctic is weakening ocean circulation, speeding up warming down south
New research shows melting ice is causing the Atlantic Meridional Overturning Circulation (AMOC) to slow down, with widespread consequences for the world’s climate and ecosystems.
www.unsw.edu.au
December 2, 2024 at 11:08 AM
Atlantic Meridional Overturning Circulation (AMOC) is a system of deep ocean currents sending warm water north and cold water south in the Atlantic Ocean.
AMOC now weaker than any other time in the past millennium.
#climate
www.unsw.edu.au/newsroom/new...
AMOC now weaker than any other time in the past millennium.
#climate
www.unsw.edu.au/newsroom/new...
Breaking: New study using observational constraints projects that the Atlantic Ocean circulation #AMOC will weaken ~50% by 2100, even for medium emissions and without Greenland melting. 🌊
More realistic models means stronger weakening - not entirely unexpected.
www.science.org/doi/10.1126/...
More realistic models means stronger weakening - not entirely unexpected.
www.science.org/doi/10.1126/...
Science | AAAS
www.science.org
April 15, 2026 at 6:10 PM
Breaking: New study using observational constraints projects that the Atlantic Ocean circulation #AMOC will weaken ~50% by 2100, even for medium emissions and without Greenland melting. 🌊
More realistic models means stronger weakening - not entirely unexpected.
www.science.org/doi/10.1126/...
More realistic models means stronger weakening - not entirely unexpected.
www.science.org/doi/10.1126/...
A bipartisan group of senators plans to introduce legislation to halt NSF's dismantlement of the Ocean Observatories Initiative (OOI), a network of ocean sensors crucial for tracking ocean circulation, marine ecosystems, climate change, and extreme weather. 🌊🧪
Trump cuts could leave America blind to extreme weather
A bipartisan group of senators and two Democratic House committees have launched a fierce challenge against the National Science Foundation (NSF)
www.independent.co.uk
June 15, 2026 at 4:18 PM
A bipartisan group of senators plans to introduce legislation to halt NSF's dismantlement of the Ocean Observatories Initiative (OOI), a network of ocean sensors crucial for tracking ocean circulation, marine ecosystems, climate change, and extreme weather. 🌊🧪
A new study by van Westen et al. shows that the #tippingpoint of the Atlantic overturning circulation #AMOC is also found in a high-resolution ocean model which resolves ocean eddies. No surprise to AMOC experts, but it's so computationally expensive to show that this hasn't been done before. 🌊🧵
March 24, 2025 at 7:07 PM
A new study by van Westen et al. shows that the #tippingpoint of the Atlantic overturning circulation #AMOC is also found in a high-resolution ocean model which resolves ocean eddies. No surprise to AMOC experts, but it's so computationally expensive to show that this hasn't been done before. 🌊🧵
Just attending a 3-day workshop on the danger of abrupt ocean circulation changes. Discussions are quite worrying. E.g. in 35 to 45 % of high quality models, convection in the open North Atlantic collapses in the 2030s due to #globalheating. -> Major climate disruption. Not good.
June 4, 2024 at 1:01 PM
Just attending a 3-day workshop on the danger of abrupt ocean circulation changes. Discussions are quite worrying. E.g. in 35 to 45 % of high quality models, convection in the open North Atlantic collapses in the 2030s due to #globalheating. -> Major climate disruption. Not good.
"Reacting to these findings, Dr. @rahmstorf.bsky.social – who has been studying the AMOC for years – says that the world must expect a faster decline than the United Nations’ Intergovernmental Panel on Climate Change (IPCC) has predicted in annual assessments."
www.independent.co.uk/climate-chan...
www.independent.co.uk/climate-chan...
Scientists sound alarm about terrifying ocean circulation tipping point
The collapse of critical ocean circulation could bring major droughts and freezing temperatures across Europe
www.independent.co.uk
December 1, 2024 at 11:06 AM
"Reacting to these findings, Dr. @rahmstorf.bsky.social – who has been studying the AMOC for years – says that the world must expect a faster decline than the United Nations’ Intergovernmental Panel on Climate Change (IPCC) has predicted in annual assessments."
www.independent.co.uk/climate-chan...
www.independent.co.uk/climate-chan...
More good news: After decades of warnings, new data suggest the Atlantic’s vital circulation may withstand climate warming better than feared www.science.org/content/arti...
The ocean current that warms Europe may be more resilient than feared
Studies of the Atlantic's circulation find signs of both weakening and unexpected stability in the face of global warming
www.science.org
June 19, 2026 at 4:02 PM
More good news: After decades of warnings, new data suggest the Atlantic’s vital circulation may withstand climate warming better than feared www.science.org/content/arti...
Hier eine Gegenüberstellung der wichtigen Änderungen, jeweils links die alte Version und rechts die neue: Das "reversal in ocean circulation" ist aus der Überschrift verschwunden: (2/5)
July 7, 2025 at 10:46 AM
Hier eine Gegenüberstellung der wichtigen Änderungen, jeweils links die alte Version und rechts die neue: Das "reversal in ocean circulation" ist aus der Überschrift verschwunden: (2/5)