Changes in Gulf Stream at ‘tipping point’ that could alter Ireland’s weather dramatically – Independent.ie

18 comments
  1. So without knowing precisely what the danger is or how to possibly repair it, would you say it’s time for our viewers to crack each other’s heads open and feast on the goo inside? Professor : Yes I would, Kent.

  2. Love a good fear mongering headline on a wet and windy Tuesday morning just to top up my misery meter .

  3. https://doi.org/10.1038/s41558-021-01097-4

    Abstract: The Atlantic Meridional Overturning Circulation (AMOC), a major ocean current system transporting warm surface waters toward the northern Atlantic, has been suggested to exhibit two distinct modes of operation. A collapse from the currently attained strong to the weak mode would have severe impacts on the global climate system and further multi-stable Earth system components. Observations and recently suggested fingerprints of AMOC variability indicate a gradual weakening during the last decades, but estimates of the critical transition point remain uncertain. Here, a robust and general early-warning indicator for forthcoming critical transitions is introduced. Significant early-warning signals are found in eight independent AMOC indices, based on observational sea-surface temperature and salinity data from across the Atlantic Ocean basin. These results reveal spatially consistent empirical evidence that, in the course of the last century, the AMOC may have evolved from relatively stable conditions to a point close to a critical transition.

  4. The Sunday Times had an article about the “conveyor belt” about 17 years ago. It was in the science section and it really opened my eyes. It discussed how if the ice shelf continues to melt at the current rates by 2025 Ireland would begin to see significant changes in climate extremes that would become the norm vs one offs. More snow in winter, dryer hotter summers and more intense storms annually. Hurricanes being one of the things that would become part of the annual weather systems.

  5. Good thing the prevailing wind direction isn’t depndent on water salinity. The thermohaline component of the Gulf Stream is why Ireland is warmer than the _west_ coast of Canada at the same latitude, not why Ireland is warmer than the _east_ coast of Canada at the same latitude. In order to get that cold, the earth would have to spin backwards.

  6. **”Gulf Stream Collapse Will Likely Not Cause Climate Catastrophe**- “Without the freshwater coming in making the AMOC slow down in the model, we get a simulation with much better, lasting agreement with the temperature data from the climate record,” He says. “The important result is that the AMOC appears to be less sensitive to freshwater forcing than has long been thought, according to both the data and model.”

    This is particularly important to climate models that evaluate how the AMOC will respond to future increases of freshwater from ice melt.”It’s built into many models,” He says.

    “Future global warming from increasing carbon dioxide in the atmosphere melts sea ice, and the freshwater from the melting ice is believed to cause the AMOC to weaken.”The widespread consequences of a drastic weakening of the AMOC include rapid sea-level rise on the eastern coast of North America, cooling over Europe that could disrupt agriculture, a parched Amazon rainforest and disruption of Asian monsoons. The new modeling study anticipates a much smaller reduction in AMOC strength, but that doesn’t rule out abrupt change.

    “We suggest until this challenge is solved, any simulated AMOC changes from freshwater forcing should be viewed with caution,” He says. “We can’t be certain why the AMOC shut down in the past. but we are certain it did change. And it can change again.” [https://www.forbes.com/sites/davidbressan/2022/04/12/gulf-stream-collapse-will-likely-not-cause-climate-catastrophe/?sh=32d561614b79](https://www.forbes.com/sites/davidbressan/2022/04/12/gulf-stream-collapse-will-likely-not-cause-climate-catastrophe/?sh=32d561614b79)

  7. I don’t understand what the point in articles like this is in mainstream news anymore. We all know we are screwed and not nearly enough is being done to fix it. I’m sick of the depression the headlines like this bring.

    It’s like you get on with life and every now and then you get reminded “hey, don’t forget your future is screwed”.

  8. If we start getting Canadian winters I’m off to Spain. Winter lets in Alicante 450/month

  9. I don’t reallt care, just enjoy your life while you can. We all die in the end. The sun will blow up in the end and destroythe earth regardless of how many vegans you eat.

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