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Re:Warning of forthcoming collapse of Atlantic meridional ov... by oceanthrowaway on Tuesday July 25, 2023 @12:55PM (#36865434)
I’m a physical oceanographer. While I have only skimmed this article I would like to make two quick comments.

1) The AMOC is one of the most studied parts of the world ocean and predictions about its collapse have been made since Stommel in 1961. I think in general any study on its imminent collapse should be taken with a grain of salt and it would be wise to wait for further replication and the consensus of the community. You can google AMOC collapse and find articles stretching back decades.

2) This may be my bias a dynamacist but I am skeptical of purely statistical models of AMOC collapse. The AMOC is complex and trying to predict the time of a complete collapse is a significant simplification (especially when, as the authors note, a slowdown rather than shutdown of the AMOC seems more likely from our current understanding).

Nevertheless this is a very interesting study and contribution to the field.

Re:Warning of forthcoming collapse of Atlantic meridional ov... by Terretta on Tuesday July 25, 2023 @01:30PM (#36866044)
The terms "imminent" and "predict the time" seem like missing the point of the article you acknowledged you have only skimmed.

I felt the article was clear collapse is not imminent, not even in this century.

I felt it noted focus was not on imminence, but on changes worth mentioning in aspects of interest.

Perhaps the difference is this article is talking of timing for transitions of significance, rather than the forthcoming collapse more likely to arrive sooner after such transitions?

Re:Warning of forthcoming collapse of Atlantic meridional ov... by mschild on Tuesday July 25, 2023 @01:40PM (#36866234)
It's mentions a potential collapse as early as 2025. More precisely 2025-2095. That is this century and it's accurate to say 2025 is imminent.
Re:Warning of forthcoming collapse of Atlantic meridional ov... by olddustytrail on Tuesday July 25, 2023 @02:12PM (#36866835)
Yes, but I - and probably you - will die sometime between 2025 and 2095. I wouldn't say that therefore our deaths are imminent.
Re:Warning of forthcoming collapse of Atlantic meridional ov... by meheleventyone on Tuesday July 25, 2023 @02:21PM (#36866970)
Right but that's just you making a bad comparison on the timescale of this thing having collapsed previously it's pretty imminent.
Re:Warning of forthcoming collapse of Atlantic meridional ov... by mschild on Tuesday July 25, 2023 @02:42PM (#36867337)
Likely, but if the collapse happens in say 2030, the rest of my life and that of almost everyone else, however short or long that may be, is not going to be pleasent.

Regardless, I would like to see humanity safely thrive. I don't want earth to become an example of the great filter theory.

Re:Warning of forthcoming collapse of Atlantic meridional ov... by wredue on Tuesday July 25, 2023 @03:05PM (#36867708)
That’s a ridiculous comparison. Single human lifetimes are only measured in decades.

If the entirety of humans were very likely to be wiped out from 2025 to 2095, you would definitely call that imminent, and is a much more apt comparison.

Re:Warning of forthcoming collapse of Atlantic meridional ov... by olddustytrail on Tuesday July 25, 2023 @03:27PM (#36868035)
That’s a ridiculous comparison. The vast majority of humans don't live anywhere near the Atlantic so there's no way the entirety of humans would be wiped out. My comparison was much more apt.
Re:Warning of forthcoming collapse of Atlantic meridional ov... by jychang on Tuesday July 25, 2023 @04:28PM (#36868895)
The number of people the collapse would affect is a whole lot closer to “the total human population” than “1 person”.
Re:Warning of forthcoming collapse of Atlantic meridional ov... by FollowingTheDao on Tuesday July 25, 2023 @03:33PM (#36868111)
Obviously, the OP does not have children or does not care about the future children are the future animals or the future anything
Re:Warning of forthcoming collapse of Atlantic meridional ov... by jzb on Tuesday July 25, 2023 @03:47PM (#36868305)
2095 isn’t, but 2025 sure is if I’m thinking about my death! Also, for an event like this, even 70 years out seems “imminent” To me.
Re:Warning of forthcoming collapse of Atlantic meridional ov... by CalRobert on Tuesday July 25, 2023 @04:36PM (#36869038)
My kids should still be alive in 2100, if only just
Re:Warning of forthcoming collapse of Atlantic meridional ov... by armadsen on Tuesday July 25, 2023 @05:56PM (#36870145)
If my son lives as long as his (still alive) great grandpa has so far, he’ll still be alive in 2110.
Re:Warning of forthcoming collapse of Atlantic meridional ov... by wernercd on Tuesday July 25, 2023 @04:28PM (#36868901)
> It's mentions a potential collapse as early as 2025

"DOOM ITS THE END OF THE WORLD!" is a tale as old as time... revelations has been screaming the end is near for thousands of years now.

It's "accurate to say" that prophets and prophecies are notoriously wrong which is why signs that the ice caps will be gone by 2000 have been removed from state parks.

hint: they aren't gone.

Re:Warning of forthcoming collapse of Atlantic meridional ov... by CyberDildonics on Tuesday July 25, 2023 @07:19PM (#36871073)
Which previous doom sayer had mountains of evidence by thousands of scientists?
Re:Warning of forthcoming collapse of Atlantic meridional ov... by wernercd on Thursday July 27, 2023 @04:54PM (#36900027)
... all of them? Ice caps are still there and the world still isn't that much hotter than it normally is.

and "thousands of scientists" lol sure... thousands of priests say that miracles happen.

Meanwhile... those same "scientists" are silent as the solutions to "climate catastrophe" are mountains of "green" tech that's unrecyclable after destroying the earth to create batteries, wind mills and solar panels that under perform and end up in land fills.

https://www.newsweek.com/nobel-prize-winner-who-doesnt-belie...

But... if that's not enough? What about scientists - including Nobel prize winning scientists - that say there are no crisis?

My opinion? "Climate Change" is a religion just like other religions - some truth mixed with a lot of "follow what I say or WE'RE ALL DEAD!". Literally 100 years of failed predictions making global warming... I mean cooling... I mean acid rain... I mean CLIMATE CATSTROPHE! wrong at every step.

Can't have real conversations about real solutions to real problems when you're dealing with religious faithful which is why green solutions are going to fuck our planet up more than oil could ever dream of.

Re:Warning of forthcoming collapse of Atlantic meridional ov... by CyberDildonics on Saturday July 29, 2023 @08:58AM (#36919859)
... all of them?

Name one and show their evidence

Meanwhile... those same "scientists" are silent

What are you talking about

as the solutions to "climate catastrophe"

Now you are mixing 'solutions' with just admitting there is a problem.

My opinion? "Climate Change" is a religion just like other religions

Climate change has huge amounts of evidence behind it. A religion by definition doesn't. If a religion had evidence it would be science.

Can't have real conversations

Is this your version of a real conversation?

Re:Warning of forthcoming collapse of Atlantic meridional ov... by oceanthrowaway on Tuesday July 25, 2023 @01:35PM (#36866151)
You are completely correct I regret that word choice now. I was rushing to comment because I felt it was important to provide context on AMOC collapse scholarship.
Re:Warning of forthcoming collapse of Atlantic meridional ov... by refulgentis on Tuesday July 25, 2023 @02:04PM (#36866696)
Memento mori: top comment made the same mistake[1], your contributions reinforced the top comment, and your separate individual reply is the second comment.

Rushing to comment has deep effects on HN, the threading incentivizes appending to the top comments rather than replying. This will now be a philosophical debate about scientific trust for hours just because people assume the article says "collapse is happening shortly by X date", but its just a statistical model :(

Don't mean to make you feel bad or call you out, most people don't read the article if it's popular. It's my attempt to give a little back to the community to note it, been here a very long time, and when people try calling it out coarsely it isn't constructive.

[1] sort of: they understood it was a statistical model but spent so much time hand-wringing about Nature publishing a statistical model that it came off like there was something wrong with the article, causing a rush of replies of "how can I trust anything??"

Re:Warning of forthcoming collapse of Atlantic meridional ov... by oceanthrowaway on Tuesday July 25, 2023 @02:22PM (#36867001)
Thank you for your kind tone (genuinely). I understand your concern. I certainly hope it does not become a debate about scientific trust for hours although you are right its headed that way. I have a great amount of trust in the scientific consensus, am a publishing climate scientist myself, and did genuinely enjoy this paper. It is my opinion that is instructive for people to know that studies on AMOC collapse are often misinterpreted when they are spread widely, similar maybe to headlines about experimental new battery designs. I do not think that the authors of the study have any ill intent or that their work is unimportant, but rather that AMOC collapse is an incredibly complex topic and that when studies on it are often posted to sites like hacker news (https://news.ycombinator.com/item?id=28085342 I have been here a decade just not on this throwaway ;) ) they are often taken as a significant change in the understanding of the field which they are not (yet at least).

I see your point that harping on this fact is perhaps boring and repetitive so I apologize for that.

Re:Warning of forthcoming collapse of Atlantic meridional ov... by nerpderp82 on Tuesday July 25, 2023 @02:25PM (#36867051)
This is the single biggest flaw in how HN discussions are formed. I almost always downvote the top comment. Often they completely derail any sort of meaningful discussion. I have fantasized around a "forum garden" where we could experiment with other ways of facilitating discussions.
Re:Warning of forthcoming collapse of Atlantic meridional ov... by bonestamp2 on Tuesday July 25, 2023 @02:35PM (#36867213)
* * *
Re:Warning of forthcoming collapse of Atlantic meridional ov... by FollowingTheDao on Tuesday July 25, 2023 @03:35PM (#36868133)
For myself, I’m looking for a forum that has no up votes or down votes.
Re:Warning of forthcoming collapse of Atlantic meridional ov... by nerpderp82 on Tuesday July 25, 2023 @04:01PM (#36868474)
It has nothing to do with downvotes. The first person to show up decides the entire future direction of the conversation.
Re:Warning of forthcoming collapse of Atlantic meridional ov... by dredmorbius on Tuesday July 25, 2023 @07:38PM (#36871229)
* * *
Re:Warning of forthcoming collapse of Atlantic meridional ov... by nerpderp82 on Tuesday August 01, 2023 @11:52AM (#36957671)
Which is a great idea and HN does.

I'd love to see a chatmodel as a forum board moderator. They understand nuances, so it would be able to spot people just fighting or adding too much snark. A real net nanny.

Re:Warning of forthcoming collapse of Atlantic meridional ov... by AnimalMuppet on Tuesday July 25, 2023 @06:18PM (#36870431)
I don't know. I'd rather have the top comment be from a physical oceanographer than from, say, some random web programmer. Both the perspective and the background context information are valuable.
Re:Warning of forthcoming collapse of Atlantic meridional ov... by dredmorbius on Tuesday July 25, 2023 @07:36PM (#36871216)
I've more than once made a late comment to a thread that I've felt has gone ... seriously pear-shaped ... and found that comment rising to or near the top of the thread.

HN does reward earliness somewhat, but less so than many other fora.

Focus more on getting it right than getting it fast.

Re:Warning of forthcoming collapse of Atlantic meridional ov... by retrocryptid on Tuesday July 25, 2023 @01:18PM (#36865804)
Are you comparing Stommel's Box model to Bower's recent work? I would argue the latter is more "expressive" though yes, it depends on measurements we weren't collecting in the 60s.
Re:Warning of forthcoming collapse of Atlantic meridional ov... by oceanthrowaway on Tuesday July 25, 2023 @01:21PM (#36865862)
No I am just noting that the AMOC bistability literature is decades long.
Re:Warning of forthcoming collapse of Atlantic meridional ov... by bhouston on Tuesday July 25, 2023 @02:22PM (#36867011)
So is the climate change literature, it stretched back decades before we had concrete evidence that it was happening. Just because something is long predicted to be a risk by experts in a field, doesn't mean its likelihood of happening goes down.

I right read about AMOC back in 1997 while in university. It was fascinating and frightening back then. Still relevant today. It would be sad if it did actually end up happening in my lifetime, but humans are notoriously bad at reacting to bad things that might happening in the future - https://en.wikipedia.org/wiki/Tragedy_of_the_commons. We tend to only really react once the bad thing has happened.

Re:Warning of forthcoming collapse of Atlantic meridional ov... by bhouston on Tuesday July 25, 2023 @02:22PM (#36866993)
If you are a real oceanographer, why are you anonymous and using a throw away?

You want to both use your credentials to be taken seriously in your posts, but also you want to avoid too much scrutiny of who you are.

Re:Warning of forthcoming collapse of Atlantic meridional ov... by GeoAtreides on Tuesday July 25, 2023 @03:47PM (#36868308)
I also commented something similar, before seeing your comment.

Not sure why people are eager to believe literally some guy on the internet. Maybe the people are afraid to believe the other guys, you know, the ones published in Nature.

Re:Warning of forthcoming collapse of Atlantic meridional ov... by mistermann on Tuesday July 25, 2023 @04:05PM (#36868539)
> You want to both use your credentials to be taken seriously in your posts, but also you want to avoid too much scrutiny of who you are.

Apply some philosophy on top of your "science" and you may learn something new and potentially interesting about your claim.

Re:Warning of forthcoming collapse of Atlantic meridional ov... by thumbuddy on Tuesday July 25, 2023 @02:36PM (#36867225)
So say it does collapse, in layman's terms what does that mean?
Re:Warning of forthcoming collapse of Atlantic meridional ov... by colechristensen on Tuesday July 25, 2023 @03:35PM (#36868137)
Europe would get cold.

Ocean currents bring lots of warm water from the south towards Europe making it quite a bit warmer than other places at similar latitudes. Cities in Europe are quite a bit further north than most people think.

Lots of other side effects as well would happen but be less known or surely predicted by models.

Re:Warning of forthcoming collapse of Atlantic meridional ov... by novaRom on Tuesday July 25, 2023 @04:19PM (#36868760)
Clear skies and drier weather should result in reduced cloud cover, which allows more direct sunlight to reach the surface during the day, leading to warmer temperatures.

During the night, the lack of cloud cover also means there is less insulation to trap the heat accumulated during the day.

This can lead to hot days and relatively cooler nights, which can be characteristic of certain climates, like in arid or desert regions.

Re:Warning of forthcoming collapse of Atlantic meridional ov... by CPLX on Tuesday July 25, 2023 @06:00PM (#36870221)
Not just colder, also drier right?
Re:Warning of forthcoming collapse of Atlantic meridional ov... by novaRom on Tuesday July 25, 2023 @03:37PM (#36868166)
Current stable pattern changes into another stable one, probably quickly. Or it may split into two independent stable patterns. It will not disappear. It may result in long term climatic changes in different geographies, especially during transition, although it would be rather quick.
Re:Warning of forthcoming collapse of Atlantic meridional ov... by thumbuddy on Tuesday July 25, 2023 @04:41PM (#36869099)
Thanks for explaining that. I guess what I'm asking is... Will the sea life likely be okay? Human life? More hurricanes? No one knows?
Re:Warning of forthcoming collapse of Atlantic meridional ov... by pvaldes on Tuesday July 25, 2023 @06:32PM (#36870597)
Hurricane season on steroids for example if all this warm water accumulate in Florida instead to move to France.
Re:Warning of forthcoming collapse of Atlantic meridional ov... by dredmorbius on Tuesday July 25, 2023 @07:50PM (#36871309)
For comparison, the El Niño / La Niña cycle, a/k/a the El Niño–Southern Oscillation (ENSO) drives patterns of drought and excessive precipitation and severe storm activity across the Pacific basin, including Australia, Japan, and North & South America, with effects being felt into the Gulf of Mexico and by some accounts, Europe. Those result from shifts in sea-surface temperatures of about 0.5 °C / 1 °F.

AMOC is part of a tremendous thermal-energy circulation system from the tropics to the arctic within the Atlantic Ocean, and tying to global ocean circulation patterns. Specific impacts are difficult to identify, but could well be hotter tropics (and likely: stronger and more frequent hurricanes and extreme storms), colder North Atlantic (including a loss of the moderating influence of the Gulf Stream on Northern European climates, hence potentially far colder and more severe winters). There are also likely impacts on marine life, agriculture, general wildlife patterns (plant and animal), amongst others. Regional sea-level rise is another possible impact (through thermal expansion if I understand correctly).

Effectively: a predictable and beneficial pattern to which human and nonhuman life and existence has evolved over many thousands of years, if not longer, may be on the verge of complete disruption. That's an event without precedent for on the order of 10,000 years (since the end of the last major glaciation period).

<https://en.wikipedia.org/wiki/El_Ni%C3%B1o>

More on prospective impacts of an AMOC collapse:

<https://en.wikipedia.org/wiki/Atlantic_meridional_overturnin...>

<https://www.nature.com/articles/s41586-019-1181-8>

<http://phys.org/news/2016-01-greenland-ice-sheet-affect-glob...>

Re:Warning of forthcoming collapse of Atlantic meridional ov... by joshuaheard on Tuesday July 25, 2023 @02:38PM (#36867265)
The article says the collapse would cause an ice age in Northern Europe. Would that "cure" global warming?
Re:Warning of forthcoming collapse of Atlantic meridional ov... by JPLeRouzic on Tuesday July 25, 2023 @02:51PM (#36867484)
I can't find any reference to ice age in the article, nor to consequences for Europe, where did I missed them?
Re:Warning of forthcoming collapse of Atlantic meridional ov... by joshuaheard on Tuesday July 25, 2023 @08:49PM (#36871754)
I've read several articles on this today. It must have been another one.
Re:Warning of forthcoming collapse of Atlantic meridional ov... by dotancohen on Tuesday July 25, 2023 @03:24PM (#36867987)
No.

Global warming is the effect of decreased solar radiation (as compared to how much solar energy is absorbed), thus more energy added to the Earth. A new ice age in Norther Europe might slightly increase that area's albido, which would increase solar radiation and in theory mitigate global warming. But truth is, the effect of that change in albido will be very small compared to the effect of the atmospheric CO2 (which traps the solar radiation).

Europe may be colder, but somewhere else is going to be much, much hotter.

Re:Warning of forthcoming collapse of Atlantic meridional ov... by joshuaheard on Tuesday July 25, 2023 @09:07PM (#36871903)
You would think that adding that much ice in the atmosphere would cool it down a little, like putting an ice cube in a glass of water.
Re:Warning of forthcoming collapse of Atlantic meridional ov... by dotancohen on Thursday July 27, 2023 @09:32AM (#36893215)
Where do you think that the "cold" in the ice comes from? It's just moving heat from one part of the planet to another.

The total amount of heat entering the Earth is increasing, cold spots not withstanding.

Re:Warning of forthcoming collapse of Atlantic meridional ov... by chiefalchemist on Tuesday July 25, 2023 @03:12PM (#36867810)
Since you're familiar with this stuff, and I didn't see it in the article, what's the impact if it were to collapse? To the ecology? To the weather? To other ocean currents?
Re:Warning of forthcoming collapse of Atlantic meridional ov... by GeoAtreides on Tuesday July 25, 2023 @03:44PM (#36868267)
The difference between your observations and the study linked is that you present your opinions in an anonymous matter, while the authors of the study attached their own names and credentials and subjected their work to peer review by colleagues. If you want to be credible, at least attach your name and credentials to the discussion, instead of spreading FUD from behind anonymity.
Re:Warning of forthcoming collapse of Atlantic meridional ov... by jacquesm on Tuesday July 25, 2023 @04:23PM (#36868808)
Climate scientists are brigaded regularly, especially online so I'm fine with them keeping a low profile. Historically the bringers of bad news were executed. These days we're a bit better but not all that much.

Uncomfortable truths and all that...

Meanwhile, you should try to respond to the arguments made, not to the man. From behind -ironically - your own anonymity.

Re:Warning of forthcoming collapse of Atlantic meridional ov... by bandyaboot on Tuesday July 25, 2023 @04:41PM (#36869101)
> Historically the bringers of bad news were executed. These days we're a bit better but not all that much.

Am I reading this right—currently scientists that bring bad news aren’t treated all that much better than…being executed?

Re:Warning of forthcoming collapse of Atlantic meridional ov... by jacquesm on Tuesday July 25, 2023 @04:47PM (#36869225)
You are not reading that right. We are not executing them in the literal sense but people's lives are being ruined.

One of the bits that made it into the guidelines is that if there are multiple explanations for a comment that you're supposed to go with the stronger one. You seem to have picked the wrong interpretation on purpose. Please don't do that.

Re:Warning of forthcoming collapse of Atlantic meridional ov... by bandyaboot on Wednesday July 26, 2023 @12:17AM (#36873032)
> You are not reading that right. We are not executing them in the literal sense but people's lives are being ruined.

I didn’t suggest that my reading was that they are being executed in the literal sense. I was saying that my reading was that what’s happening to scientists is only a little bit better than literal execution—and because I found that reading so surprising, I asked if that was correct.

> One of the bits that made it into the guidelines is that if there are multiple explanations for a comment that you're supposed to go with the stronger one. You seem to have picked the wrong interpretation on purpose. Please don't do that.

Seems to me there’s a bit of hypocrisy going on here. I literally asked if my reading of it was correct. For you to say that I purposely picked a wrong interpretation (though I’m not sure your explanation suggests that my actual interpretation was wrong) would seem to mean that you think my question was insincere—that I wasn’t actually wanting to know if my interpretation of it was correct. That’s fine, but you had the choice of believing I was being sincere or that I was being insincere. Did you pick the “stronger”?

And to be clear, I’m generally on your side with regard to your overall point. The trend over the last decade or more of people attacking scientists who dare find results that conflict with their politics makes me furious.

Re:Warning of forthcoming collapse of Atlantic meridional ov... by GeoAtreides on Tuesday July 25, 2023 @04:33PM (#36868975)
I can't respond to arguments made, because I'm not a climate scientist, I just move pixels around in my day job. I don't know anything about climate simulations, the past and present literature, etc. In the same way I trust doctors when they say I need stuff cut out from my body, or that ingesting this or that would give me cancer, in the same way I trust people who study climate science for a living, that have a career in climate science and that have published in scientific journals. I'm not a superman, I can't learn every domain that is to learn for every study published. We have some people that study a thing -- we will trust them. And like wise, when people need pixels moved, they can come to me, they can trust me to move the pixels.
Re:Warning of forthcoming collapse of Atlantic meridional ov... by oceanthrowaway on Tuesday July 25, 2023 @04:15PM (#36868712)
I’m maybe overly cautious about my online footprint. I understand your skepticism and think it’s well placed. For what it’s worth I don’t see my comment as FUD and would wager that the authors of the study would agree with my comment. I enjoyed their study and was just trying to provide additional context (see also the link in my edit).

You are totally right that my comment is worth significantly less than a peer reviewed study.

Re:Warning of forthcoming collapse of Atlantic meridional ov... by PKop on Tuesday July 25, 2023 @03:57PM (#36868431)
You'd love to ruin his career and publicly shame him for having incorrect views wouldn't you?

Awarding credibility on the basis of having a public face is absurd, and it's trivial to conceive of the way that could be politically silencing of dissident views, or that lack of anonymity would incentivize sticking to consensus.

People disagree anonymously on the internet all the time, since the beginning. Are you incapable of judging the merits of an argument without requiring some appeal to authority?

Re:Warning of forthcoming collapse of Atlantic meridional ov... by tarsinge on Tuesday July 25, 2023 @04:06PM (#36868556)
What is there to judge? The original commenter is the one making an appeal to authority, then just saying they are skeptical. In short an anonymous giving their opinion. The parent is right saying it’s of way lower value than the study.
Re:Warning of forthcoming collapse of Atlantic meridional ov... by PKop on Tuesday July 25, 2023 @04:10PM (#36868612)
Because a study lays out a more thorough and detailed argument, not because someone's real name or credentials are attached.

The crux of my disagreement was his claim a name attached to an argument a priori makes it more valid than one that is anonymous.

In a highly politicized environment, it can possibly be argue that a real name makes it less credible and more likely to be consensus. Putting that aside, it certainly doesn't it make it more credible.

Re:Warning of forthcoming collapse of Atlantic meridional ov... by dang on Tuesday July 25, 2023 @05:57PM (#36870172)
That's crossing into personal attack. Please don't do that here.
Re:Warning of forthcoming collapse of Atlantic meridional ov... by GeoAtreides on Wednesday July 26, 2023 @03:52AM (#36874370)
I disagree it was a personal attack. I just said anonymous posters who claim they are <X> don't have credibility, in contrast with people who put their names and credentials up there. I haven't called the poster names or insulted them.

It's very easy to shape public opinion, dang; we shouldn't let anonymous posters set the tone of discussion or flung FUD around on the most important issue of our lives.

When I go to the doctor, I know I can trust them because I see a diploma on the wall, they have a name, I can ask other doctors about them. Would you, dang, let someone you just met on the street operate on you? Or diagnose you? Just because they said they were a doctor?

Re:Warning of forthcoming collapse of Atlantic meridional ov... by dang on Wednesday July 26, 2023 @01:24PM (#36881385)
You're misassessing the costs and benefits of attacking people for posting anonymously.

Re costs: Look at https://news.ycombinator.com/posts?id=oceanthrowaway - the odds that this commenter is legit are quite high. Would it would have been better if they had posted under a regular username? Sure, but people sometimes have good reasons for making throwaway accounts to post about topics they're professionally expert in. Such comments add value to HN, sometimes a lot of value (e.g. sometimes they give important inside information about a topic), and punishing people for doing that is against the community interest.

Re benefits: it's not at all easy to "shape public opinion" by an anonymous comment on an internet forum. You'd have to do it repeatedly, and the more repetitive it gets, the more predictable the comments become, and the more likely the community will have an immune response to it. In my experience from moderating this place over the years, internet users are far too quick to assume that they're encountering manipulative stealth behavior.

What you should be responding to instead is the quality of the comments. If a throwaway account is repeatedly posting low-quality comments, then sure, that's a good reason to be critical - but the throwawayness of the account should not be the high-order bit.

If you had made your point less aggressively, I probably wouldn't have responded, but you came down on the GP like a hammer (e.g. "spreading FUD from behind anononymity") and that put your comment on the wrong side of the HN guidelines.

https://news.ycombinator.com/newsguidelines.html

Re:Warning of forthcoming collapse of Atlantic meridional ov... by GeoAtreides on Wednesday July 26, 2023 @02:12PM (#36882283)
> you should be responding to instead is the quality of the comments.

But that's the thing, isn't it? I'm not an expert in climate science, I can't judge what's quality and what's FUD reasonably phrased. Neither the vast majority on HN. There is no way for us to determine if this anonymous guy makes some good points or just wants to spread some doubt towards the study. Just because climate science seems more approachable than maths, doesn't mean people are equipped to determine what's true, what's manipulation or what's plausible.

Blows my mind some guy made an account, said he was a physical oceanographer, made some grammatically correct comments and everyone believed it. Just like that!

> internet users are far too quick to assume that they're encountering manipulative stealth behavior.

It's 2023 and it's about climate change, dang...

Re:Warning of forthcoming collapse of Atlantic meridional ov... by dang on Wednesday July 26, 2023 @05:57PM (#36885697)
In that case you could ask curious questions that would help you, and the rest of us, to learn about it; or you could just not post.

> I can't judge what's quality and what's FUD

I hear you! but you attacked the other person specifically for "spreading FUD". That is not a helpful thing to do, even if you can judge the question.