• Doombot1@lemmy.one
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    10 months ago

    The solution to global warming, then, is clearly to just set up a massive ring of fans all pointed in the same direction in a ring around the North Pole, to keep the jet stream going

    • MajorHavoc@programming.dev
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      10 months ago

      That’s a bit like the investigation into whether lethal bear attacks are because of their teeth or their claws - probably really interesting, but not critical to the question of avoiding the bear.

    • Krauerking@lemy.lol
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      10 months ago

      Interesting. I would love to work on that kind of data model, as there is an interesting thing to point out with the movement of the polar vortex:
      It dips further south to follow along land mass.

      I wonder if the wind currents have an easier time maintaining speed along flat surfaces or if the water being warmer causes pockets of higher pressure further north than usual pushing the vortex to be more unstable looking.

      It feels like it makes sense that the current would be much more stable along a surface that is more consistent and thus loss of ice smoothing the surface would cause it to wobble but inertia still remains the same meaning it needs to push down elsewhere where there is less resistance.

      So I would lean towards ice loss as a cause of changing polar vortex stability but I kinda gave up that ability to do anything about this or study such things a while ago.

    • Slovene@feddit.nl
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      10 months ago

      I was led to believe it’s both. Global warming causes ice loss which contributes to global warming which causes more ice loss which contributes to global warming which causes more ice loss …

    • DTFpanda@lemmy.world
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      10 months ago

      Yeah I’ve actually lost faith in 100% of folks in 2024 who still think it’s a scam. I used to think it was just boomers, it’s not. Every climate change related post from NASA on their social media accounts is literally full of young people making fun of them for ‘lying to the public’ and how it’s all a hoax. There’s no depth to these people, we truly live in a society full of complete morons who will believe in a conspiracy theory because of a 5 minute badly edited YouTube video, but refuse to trust anything that is widely accepted in the scientific community because of their need to feel important, intelligent, and ‘in’ on something that the rest of the world isn’t in on.

      • mmagod@lemmy.world
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        10 months ago

        the fellow students in school growing up that always blew off paying attention in school and disrupting class didn’t just disappear… sure i saw less of them when i wasn’t confined to those public grade school walls, but it’s been a harsh realization for me as I’m seeing them again as adults buying into and spreading the misinformation.

  • LillyPip@lemmy.ca
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    10 months ago

    I just hope we’re not seeing the start of a shutdown of the North Atlantic current, which is likely what led to the Younger Dryas ice age, which marked a dramatic climate shift and widespread extinction event over just a couple of decades:

    The change was relatively sudden, took place over decades, and resulted in a decline of temperatures in Greenland by 4–10 °C (7.2–18 °F), and advances of glaciers and drier conditions over much of the temperate Northern Hemisphere. A number of theories have been put forward about the cause, and the hypothesis historically most supported by scientists is that the Atlantic meridional overturning circulation, which transports warm water from the Equator towards the North Pole, was interrupted by an influx of fresh, cold water from North America into the Atlantic.

    Right now, it’s looking like that may have already started: Study: Warning of a forthcoming collapse of the Atlantic meridional overturning circulation. If that’s the case, things will become very hot and then abruptly freeze, not over the course of a century, but virtually overnight.

    e: better link

    • CADmonkey@lemmy.world
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      10 months ago

      The thing I keep thinking about, and I feel like I’ve never been able to properly communicate, is that the machines our society runs on are built to run in a certain temperature range.

      The 2021 texas winter fiasco was a perfect demonstration of what happens when we try to run a society’s machinery outside of it’s expected temperature range. Yes, the ERCOT goofballs were trying to save money by narrowing that expected operating range because “It never gets that cold” and “It never gets that hot”, but my badly articulated point still stands - a system was made to operate in a temperature range outside of it’s capability, and it started to fail. They were minutes away from losing very expensive and hard to replace equipment. What we don’t want is for one of the more competently-run power grids in the world to start to buckle due to temperatures, because the same thing that happened in texas could happen on a larger scale.

      And that’s just talking about the power grid. Anything with a heat exchanger in it, including your car and air conditioner and all the refrigeration that is needed to keep everyone fed, is designed to run in a certain temperature range, and will stop working if you run it outside of that range for too long.

      But wait, we can just design stuff to run in a wider temperature range! We certainly can. But we would have to redesign everything that moves heat around.

    • Obi@sopuli.xyz
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      10 months ago

      When you stop and actually think about our situation you realise how thin our operating margins are, we are at the mercy of whatever the planet does and our safety is subject to immediate dismissal should the conditions change. Worse of course are the random cosmic whims which could wipe us out instantly at any time e.g. comets, the sun going weird, etc.

      • psud@lemmy.world
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        10 months ago

        The day after tomorrow was related, but relied on a no longer mainstream idea that the Arctic vortex could become a whole northern hemisphere storm, so big it would liquify nitrogen in its central low

        We really hope that’s not a thing that can happen. It would render most of the northern hemisphere dead

    • slingstone@lemmy.world
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      10 months ago

      Is there any resource for forecasting what will likely occur in a given area? I don’t see how we can stop climate change now, so I want to prepare my family for it.

      • LillyPip@lemmy.ca
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        10 months ago

        Not that I’m aware of. From what I understand, that scenario would affect the entire planet.

        • slingstone@lemmy.world
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          10 months ago

          Yeah, but the changes to weather patterns will vary from location to location, right?

          This is what I mean:

          Warming is already occurring in all areas of the globe, but models of future temperatures show that the changes will not be distributed equally. Polar regions and land areas are expected to see the largest temperature changes.

          IPCC Working Group I, 2021

          • LillyPip@lemmy.ca
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            10 months ago

            Right, but if that current shuts down, that means the transfer of warm and cold currents that power weather patterns across the entire northern hemisphere will be disrupted.

            The last time that happened, the entire northern hemisphere basically froze over. If you live north of the equator, whether it’s North America, Europe, or Asia, the result would be similar: no more warm seasons and freezing to the point of glaciation, from what I understand. I’m not a climatologist, though.

  • mechoman444@lemmy.world
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    10 months ago

    HEY!!! Get your science and facts out of here!

    ~ ~Places fingers in ears and closes eyes~ ~ laalalalalalalal

  • BigDiction@lemmy.world
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    10 months ago

    reference

    I was trying to look up why less polar ice causes shifts in the jet stream and this article cites an active debate around our understanding on this.

    The tweet does not really address that point, and makes the cause and effect sound definitive.

    • wreckedcarzz@lemmy.world
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      10 months ago

      What, are you saying a website called X where I can easily share both amateur porn, shitpost, and fight with other keyboard warriors isn’t a solid source for factual information? smh what are you talking about

      Next you’re going to tell me that drinking diesel fuel is bad for my longevity or something.

    • SwingingTheLamp@midwest.social
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      10 months ago

      The Xcretion says that less ice “is consistent with” a weaker jet stream, which does not imply a casual relationship. If A causes B and Y, then B is consistent with Y; or, more accurately, we can produce a useful model of the system that includes both less ice and a weaker jet stream, and have it be internally consistent.

    • Pendulum@lemmy.world
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      10 months ago

      Which is the flaw of social media science these past few years. Theories evolve as new data is presented and new hypotheses are formed. The average twitter denizen won’t have that, no sir, and will with glee smack you with an outdated textbook with equal zeal as a Bible basher.

      “FACTS DONT FUGGING CHANGE YOU BIGOT” == “THE WORLD IS ONLY 6,000 YEARS OLD SAYS SO IN THE BIBLE”

  • SoupBrick@yiffit.net
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    10 months ago

    Y’all ready to be gouged for survival items until money becomes irrelevant?

    P.S. ‘A Capitalist Apocalypse’ would be a fun title for a political comedy song.

    • PorkRoll@lemmy.world
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      10 months ago

      I’ll start writing that play. We won’t even have to splurge on the stage as the wasteland will provide a natural setting.

  • starman2112@sh.itjust.works
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    10 months ago

    Even as the US hits record setting lows, the temperature of the planet as a whole remains above average. If it’s -20°F across the entire US, how hot must the rest of the planet be?

    • kinther@lemmy.world
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      10 months ago

      Ice ages typically happen due to very low insolation or the ability of solar energy to reach the surface of our planet. Insolation is a term often used when describing how much energy a solar panel can create.

      Right now we have a big problem with too many greenhouse gases, which exacerbate the insolation we already have. It is heating our oceans rapidly, thus causing the break up of ice sheets in the Arctic and Antarctica. At some point the oceans won’t be able to absorb the heat we are receiving and air temperatures will begin to rise as well. Equilibrium. Hence Venus by Tuesday.

    • Everythingispenguins@lemmy.world
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      10 months ago

      So maybeish, so there is the possibility that warming of the oceans will cause the large ocean currents to slow/stop. This will reduce the amount of mixing of ocean water. Causing greater salinity and temperature gradients in the oceans relative to latitude. Making the Arctic ocean colder and the tropical ocean warmer. This colder Arctic ocean would lead to lower Arctic temperatures and an increase in ice, increasing the albedo of earth. The higher albedo would reflect more sunlight cooling the planet into an ice age.

      Having said all that it is important to note, first if this happens it will be on geologic time scales. So the planet will still get a lot hotter first. Second it is just a hypothesis, we don’t know what is going to happen on a longer scale because this period of warming is unprecedented in earth’s history. Yes it has been hotter and had higher CO2 levels, but not anywhere the speed of chance we have had in the last 100years. So using past trends to predict the current change will be vague at best.

      TLDR: it is still going to get a lot hotter before any chance of getting colder.

      • Tlaloc_Temporal@lemmy.ca
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        10 months ago

        Correct me if I’m wrong, but this warm ocean leading to cold poles is one of the suspected mechanisms that cause repeated glacial/interglacial periods in ice ages, right?

    • psud@lemmy.world
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      10 months ago

      We are in an ice age, you can tell because there is an ice cap at both poles.

      We are in an interglacial period, which if we fixed carbon pollution today would still continue for tens of thousands of years beyond it’s expected end

      There used to be a theory that this sort of weather reinforces the northern ice and glaciers and could start glaciation, but that’s not supported by modern models