One of the implications of the Gulf Stream weakening is that Northern Europe will get cold and Northern Northern Europe will get hella cold (eg. Norway):<p>"If it collapses, it could lower temperatures by up to 10 or 15 degrees in Europe and lead to rising sea levels in the eastern US. It would also disrupt rain that billions rely on for agriculture."
Anyone know a good web site or publication that shows potential outcomes from all these different changes to global climate and where will be the best places to live in the future? Should i be looking to buy plots of property it Alaska?
The "Cold Blob" illustrates quite well what is happening.<p><a href="https://en.m.wikipedia.org/wiki/Cold_blob" rel="nofollow noreferrer">https://en.m.wikipedia.org/wiki/Cold_blob</a>
"has slowed by 4% over the past four decades"<p>Wouldn't it be the case that the measurement of almost any aspect of nature will show a 4% change over 40 years and so can produce similar headlines? <X> is going up / going down. This has ramifications for the globe.
A recent Danish study predicted the collapse of Gulf Stream by the end of the century.<p><a href="https://www.politico.eu/article/climate-change-gulf-stream-atlantic-ocean-global-warming-nature-ditlevsen-copenhagen/" rel="nofollow noreferrer">https://www.politico.eu/article/climate-change-gulf-stream-a...</a>
Claude Summary:<p>- New research has found the Gulf Stream is almost certainly weakening. Measurements show the warm water current flowing through the Florida Straits has slowed by 4% over the past 4 decades.<p>- The Gulf Stream plays a vital role in regulating temperatures and sea levels along the U.S. East Coast and in Europe. Its weakening could have major climate impacts.<p>- Melting ice sheets are dumping more cold, fresh water into the oceans, which scientists believe may be causing the Gulf Stream to slow down or become less stable.<p>- This new study provides the strongest evidence yet that the Gulf Stream is slowing, using data from undersea cables, satellites, and on-site observations.<p>- The changes seen so far are small (4%) but could be the start of more dramatic shifts. Scientists emphasize the importance of continuing to monitor the Gulf Stream.<p>- More research is still needed to definitively link the Gulf Stream changes to human-caused climate change versus natural variability. But scientists are concerned about the potential climate consequences if the current continues to weaken.<p>Here are some of the potential consequences if the Gulf Stream continues to weaken:<p>- Cooling effects along the U.S. East Coast and Western Europe - The warm water from the Gulf Stream plays a key role in keeping these regions warmer than they otherwise would be. If it weakens, winters could get significantly colder.<p>- Sea level rise along the U.S. East Coast - The current helps keep water levels lower along the coast. A slowdown could lead to accelerated sea level rise.<p>- Changes to ocean currents and weather patterns - The Gulf Stream is part of a larger global ocean circulation system. Disruptions to it could alter currents, storm tracks, and precipitation patterns across the Atlantic and beyond.<p>- Marine ecosystem impacts - Many species have evolved with and depend on the warm waters of the Gulf Stream. Changes could affect food webs and fisheries.<p>- Increased hurricane activity - Some research suggests the Gulf Stream helps limit tropical storms. A slowdown may increase intensity and frequency of hurricanes forming off Africa.<p>- Accelerated ice melt - The Gulf Stream brings warm water near Greenland and Antarctica. Its weakening could disrupt this process, potentially speeding up ice sheet melt.<p>- Ocean oxygen depletion - Circulation changes could reduce oxygen mixing in parts of the ocean, creating more "dead zones."<p>- Climate feedback effects - Changes in ocean currents, temperatures, and circulation could feedback and cause additional changes to climate patterns.<p>So in summary, potentially wide-ranging impacts to climate, weather patterns, sea levels, ecosystems, and human societies if the observed changes continue. But more research is needed to better understand the extent and likelihood of these potential impacts.
I mean given what we know about the Sahara and its wet and dry periods, it doesn’t seem at all illogical that ocean currents should start and stop to match.<p>I think it’s important to understand that the earth is deeply dynamic and constantly changing, and has incredible variation in often cyclical patterns over hundreds, thousands and tens of thousands of years.<p>While we know human caused elements are accelerating trends, it’s important to separate the human accelerant from the fact that the Earth herself goes through regular and quite massive changes — that climate change can affect — but that are normal, quite natural and quite civilization and food growing pattern interrupting sized.<p>We have been in a period of unusual climate stability…<p>Edit: I’m getting heavily downvoted so I feel the need to clarify, as this comment is not incorrect or even controversial in climate circles. We have experienced rapid changes inside of single human lifetimes many times, and It’s important to be able to <i>talk about science</i> openly without labeling everyone who doesn’t parrot exactly the narrative you expect them to conform to just because it kinda sorta looks like a climate denier even though it isn’t. Very much not what I would expect of the HN crowd.<p>Here’s a write up:<p>> Most likely, freshwater delivered from the ice sheet to the North Atlantic periodically disrupted the overturning of the ocean, causing the transport of tropical heat to the north to reduce and then suddenly increase again. While this mechanism is unlikely to occur today’s world, it does show us that, at least regionally, the climate is capable of extraordinary changes within a human lifetime – rapid switches we certainly want to avoid experiencing.<p><a href="https://www.bas.ac.uk/data/our-data/publication/ice-cores-and-climate-change/" rel="nofollow noreferrer">https://www.bas.ac.uk/data/our-data/publication/ice-cores-an...</a><p>Further:<p>> A new study suggests climate conditions in the Sahara Desert have changed from wet to dry about every 20,000 years. The study was carried out by scientists at America's Massachusetts Institute of Technology, or MIT. Findings were published in the journal Science Advances.<p><a href="https://learningenglish.voanews.com/a/study-africa-s-sahara-changed-from-wet-to-dry-every-20-000-years/4727881.html#:~:text=A%20new%20study%20suggests%20climate,in%20the%20journal%20Science%20Advances" rel="nofollow noreferrer">https://learningenglish.voanews.com/a/study-africa-s-sahara-...</a>.<p>There is <i>precious little</i> discussion of the research on natural climate change and the patterns that man made climate change is enhancing, and it’s <i>very, very important</i> to learn about the natural cycles and how man made climate change changes them.<p>If that’s worth downvoting simply because it doesn’t align with the Only Allowed NarrativeTM for anything climate related then HN is no longer the discussion platform for reasonably intelligent people it once was and that would be very sad indeed.