#amoccollapse — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #amoccollapse, aggregated by home.social.
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Ooofff!.. 😞 https://e360.yale.edu/digest/amoc-collapse-10-percent (C’mon me, try not to worry…)
#climatechange #amoc #amoccollapse -
Mysterious 'cold blob' in the #Atlantic is a sign of the #GulfStream weakening — and that's bad news for the #USEastCoast
The Atlantic's enigmatic "cold blob" has once again been linked to a weakening of key ocean currents and a devastating climate tipping point.
Story by Patrick Pester, 6/10/2026
"A mysterious "cold blob" in the Atlantic Ocean is a sign that key ocean currents are weakening, a new study has found, with potentially devastating long-term impacts on our #climate and #weather.
The cold blob, or #NorthAtlantic #WarmingHole, is an area south of Greenland and Iceland where average sea surface temperatures have actually been going down. Researchers have been working to understand the blob for years, given that it bucks the global trend of Earth getting warmer.
"The new research, published May 28 in the journal Geophysical Research Letters, supports previous interpretations that the blob's existence points to a weakening of ocean currents known as the Atlantic Meridional Overturning Circulation (#AMOC). "
Live Science (maybe behind a paywall):
https://www.livescience.com/planet-earth/rivers-oceans/mysterious-cold-blob-in-the-atlantic-is-a-sign-of-the-gulf-stream-weakening-and-thats-bad-news-for-the-us-east-coastArchived version:
https://archive.ph/5ub6v -
Bye Bye Britain? New Evidence For AMOC Collapse
https://www.youtube.com/watch?v=iw9AiEG-QwwThere is another reason why leaving Shengen and the EU with Brexit was not so smart. We might get a massive migration South and find ourselves as unwanted foreigners...
¯\_(ツ)_/¯ -
Climate change update: We're far more fucked far sooner than previously assumed.
"we thought the chance of an Amoc shutdown was maybe 5%, and even then we were saying that risk is too high, given the massive impacts. Now it looks like it’s more than 50%."
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Looming Instability: Ocean Current Collapse Raises Carbon Release Concerns
Scientists warn of potential collapse in Atlantic Ocean currents, like the Gulf Stream, which could raise global temperatures by 0.2°C and cause extreme weather.
#AMOCcollapse, #GulfStream, #ClimateChange, #OceanCurrents, #GlobalWarming
https://newsletter.tf/atlantic-ocean-current-collapse-carbon-release-concerns/
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A potential collapse of the Atlantic Ocean's current system could raise global temperatures by 0.2°C, a significant increase that could lead to extreme weather events.
#AMOCcollapse, #GulfStream, #ClimateChange, #OceanCurrents, #GlobalWarming
https://newsletter.tf/atlantic-ocean-current-collapse-carbon-release-concerns/ -
@fetzert no political decision makers anywhere in the world are taking #AMOCCollapse seriously. The nationalist government of Scotland — probably the territory at most immediate and extreme risk from #AMOCShutdown — are talking about increasing oil production.
The problem with democracies addressing the #ClimateEmergency is that there's so much hysteresis in the atmosphere that by the time the consequences are bad enough to affect everyday life, it's decades too late for remedial action.
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The global climate system is complex. As I understand it global warming causes... [complex global oceanic and atmospheric interactions]... the AMOC could collapse.
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#Reuters #Iceland #AMOC #AMOCcollapse #StefanRahmstorf
(A bit late, this awakening, methinks...)
"Iceland has declared the potential collapse of the Atlantic Meridional Overturning Circulation, or AMOC, a national security concern, citing risks to Europe's climate and global weather systems"
https://www.youtube.com/watch?v=N1op3oCx0_M
#ClimateScience #climatechange #ClimateEmergency #ClimateCrisis #ClimateBreakdown #ClimateDisruption #ExtremeWeather #polycrisis #fossilfuels #GreenhouseGases #KeepitInTheGround
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#AMOC #AMOCcollapse #TippingPoint
Original open access article
van Westen et al. 24 Aug 2025; J Geophys Res Oceans, 130, e2025JC022651
Physics-based indicators for the onset of an AMOC collapse under climate change
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#FYI #ClimateGenn #NickBreeze #ReneVanWesten #AMOC #AMOCcollapse #TippingPoint
Dr René van Westen about a physics based method for forecasting the very consequential AMOC Tipping Point.
https://www.youtube.com/watch?v=f8e3EwDrK6M
#climate #ClimateScience #climatechange #ClimateEmergency #ClimateCrisis #ClimateBreakdown #ClimateDisruption #globalWarming #globalHeating #ExtremeWeather #polycrisis
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Some people hope that #GlobalWarming and regional cooling due to #AMOCcollapse might cancel each other out in Europe, but it is just as likely to combine into something worse, with +50°C heat waves in the hot half of the year, -50°C cold waves during the cold half of the year, and incredibly violent storms due to the enormous temperature gradients.
And we might have passed the tipping points already. We won't know until many years or even decades after the fact. Crossing the point of no return after which the system can only move in one direction doesn't come with any immediate consequences, so we don't have any way of knowing when we do.
We obviously have crossed some tipping points already, e.g., Arctic sea ice is going to vanish, the only question is how fast or slow. The world is already changing, and we have to adapt. However, in order to be even able to adapt, we need to keep the speed at which the world changes as low as possible, which means we need to stop doing what we have been doing for the past ~250 years (more or less; in many places of the world, it's been less than a hundred years) and act in a radically different manner, forming a connection to the living world of which we are an essential part instead of acting like we're something entirely different than and separate from nature.
#ClimateChange #ClimateChaos #ClimateCatastrophe #πολυκρίσης #polykrisis #polycrisis
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Physics-based indicator predicts tipping point for collapse of Atlantic current system in next 50 years
by Krystal Kasal
"The Atlantic Meridional Overturning Circulation (#AMOC) is an enormous loop of ocean current in the Atlantic Ocean that carries warmer waters north and colder waters south, helping to regulate the climate in many regions. The collapse of this critical circulation system has the potential to cause drastic global and regional climate impacts, like #droughts and #ColderWinters, especially in Northwestern Europe.
"Previous research has already indicated a weakening in the AMOC, but there has been uncertainty about when the AMOC will collapse under future climate change or whether it will collapse at all. But new research, now published in the Journal of Geophysical Research: Oceans, indicates that collapse of the AMOC is likely and that it might begin sooner rather than later.
"Using a new physics-based indicator and the Community Earth System Model (#CESM), the study authors have produced new simulations of the AMOC collapse under various conditions.
"The researchers believe the new indicator better represents the water circulation compared to previously used parameters, such as the ocean's surface temperature. Instead, it represents a tipping point indicated by a sign change in surface buoyancy flux (Bflux) over a key part of the North Atlantic Ocean from 40°N to 65°N. They also compared their results to historical observations and data.
"Their simulations tested out 25 different climate models. They say that the AMOC was fairly stable until about 2020, but since then, there have been signs of weakening. Future modeling shows that, in high-emission scenarios, the AMOC collapse tipping point began as early as 2023 and as late as 2076, with a median tipping point at 2055. Under more intermediate scenarios, the tipping point was placed between 2026 and 2095, with a median of 2063.
"The study authors note, 'If the AMOC starts to collapse, it takes more than 100 years to reach a substantially weaker state. During that transition, the Northwestern European climate would change drastically and is expected to see colder winters, less rainfall, and more severe winter storms.'
"The study authors also note that many prior simulations only ran until around 2100, but letting simulations go further into the future might provide more accurate results. They say, 'Given these risks of AMOC tipping under climate change, we encourage modeling groups to simulate to at least the year 2200.'
"There were some limitations in this research; for example, most models did not include enhanced #GreenlandIceMelt, which could actually accelerate AMOC weakening. In some cases, background circulation can balance surface buoyancy gain. In these cases, the proposed indicator can also give false positives, but this is rare.
"There is still time for societies to limit the impact of eventual AMOC collapse or to develop adaptation strategies, but the study authors offer a stark warning, saying, 'To limit the risk of AMOC weakening and a potential collapse in the foreseeable future, global society needs to be on track of a #LowEmission scenario and urgent #ClimateAction is needed to guarantee this.' "
Read more:
https://phys.org/news/2025-09-physics-based-indicator-collapse-atlantic.html -
«Dagens kulderekord i Oslo er minus 31,1 grader. Med en kollaps i Amoc vil Oslo kunne oppleve temperaturer ned til -47,9°C»
https://www.nrk.no/klima/frykter-temperaturer-ned-mot-minus-50-i-oslo-om-amoc-forsvinner-1.17454602
#Norsktut #allheimen #oslo #norge #Science #amoc #amoccollapse
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Original open acces article
van Westen and Baatsen 11 June 2025, Geophysical Research Letters, 52, e2025GL114611
European temperature extremes under different AMOC scenarios in the community Earth system model
https://doi.org/10.1029/2025GL114611
#ClimateScience #climatechange #ClimateEmergency #ClimateCrisis #ClimateBreakdown #ClimateDisruption #globalWarming #globalHeating #ExtremeWeather #EcosystemCollapse #systemcollapse #ecocide #fossilfuels #Co2 #Co2Emissions #GreenhouseGases
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#FYI #ClimateGenn #NickBreeze #RenevanWeston #AMOC #AMOCcollapse
"looking at how the Atlantic Meridional Overturning Circulation (AMOC) responds in three different carbon emissions scenarios"
https://www.youtube.com/watch?v=v8IrMtPbSTQ
#ClimateScience #climatechange #ClimateEmergency #ClimateCrisis #ClimateBreakdown #climatecatastrophe #ClimateDisruption #globalWarming #globalHeating #ExtremeWeather #EcosystemCollapse #systemcollapse #ecocide #fossilfuels #Co2 #Co2Emissions #GreenhouseGases #KeepitInTheGround
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"...talk to three paleoclimate experts who look at the Earth’s past climate and find some really shocking things about the AMOC’s past behavior. And it turns out that the mysterious cold blob may actually be a bigger deal than we realize…"
https://www.youtube.com/watch?v=5R-PeI6wI3s
#climate #ClimateScience #ClimateEmergency #ClimateCrisis #ClimateBreakdown #climatecatastrophe #ExtremeWeather #EcosystemCollapse
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oh my… 😳
„The [AMOC] collapse time is estimated between 2037-2064 (10-90% CI) with a mean of 2050 and the probability of an AMOC collapse before the year 2050 is estimated to be 59 ± 17%“
Even if it was „only“ 5% probable it would mean we need to do everything to prevent it. With these probability percentages and near-present possible timeframes… where are we heading?
#ClimateChange #amoccollapse #collapse #overshoot #climatecris