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southern_cross

37 karma · joined April 6, 2018

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southern_cross··on Indoor carbon dioxide levels could be a health hazard
Heat dumping is done outside the room, of course, but that's a separate airflow, one that's generally disconnected from the room. The cool AC flow itself is usually a closed cycle of some sort. You would be kind of defeating the whole purpose of trying to cool and dehumidify the air if you did otherwise, plus your AC system might have to run continuously in order to get anything done. There will always be some leakage, of course.
southern_cross··on Indoor carbon dioxide levels could be a health hazard
It would depend on the situation. For a single room system, generally no; for a multi-room system, generally yes if the other rooms are empty or at least relatively less crowded than the one you're in. That is, I wouldn't expect the AC to really remove any CO2; it might redistribute it, though.
southern_cross··on Indoor carbon dioxide levels could be a health hazard
Conveniently not mentioned is this article is the fact that normal CO2 concentrations in human lungs are about 40,000ppm - or about 100x higher than current background levels, and many times higher than the elevated levels mentioned in this article. And I don't know about you, but when I'm in a crowded room what eventually makes me tired and uncomfortable is the heat and humidity from all those bodies. Turn on the AC (which reduces both heat and humidity) and I will be feeling much better in short order.
southern_cross··on Climate change: Boiling frog or tipping point panic?
No, I'm using them to discredit some of the thinking in the article. You did read the article, didn't you? It's pretty simple-minded stuff.

But I do have to ask: If that 100F temperature had occurred recently instead of over 100 years ago, how many people would be absolutely freaking out about it? And it would be all over the news, wouldn't it, complete with satellite interviews and talking heads and repeated insistence that "We must do something about climate change right now!"

As it is, though, it's just a historical footnote isn't it? And it seems that some folks are now trying to claim that it never really happened. (It appears to have been truncated out of the HadCRUT temperature data set, for example.) How inconvenient for them, then, there are other folks out there who have gone so far as to dig up the actual handwritten log for the weather station involved, which appears to be in good order.

https://pbs.twimg.com/media/D-E1nQ_W4AEpC7D.jpg

Still other folks have noted that there are other logs out there for other stations which show equal if not higher temperatures, but Fort Yukon is called out as the official record high temperature for the state. I can only assume that investigation showed that those other stations weren't as reliable as Fort Yukon, but the possibility exists that they did in fact experience equally high or even higher temperatures.

southern_cross··on Climate change: Boiling frog or tipping point panic?
A couple of questions which need to be asked and answered: When Anchorage hit its previous record of 85F back in 1969, was that a "tipping point" and a sign of impending climate doom? Better yet, when Fort Yukon (which is almost 400 miles NNE of Anchorage, and just a mile from the Arctic Circle) hit its record (and all-time state high) temperature of 100F (!) way back in 1915 (!!), what that a "tipping point" and a sign of impending climate doom? Enquiring minds want to know.
southern_cross··on Climate change: Boiling frog or tipping point panic?
It's been pointed out that if these protests hadn't been used as an excuse for skipping school - that if they had generally been held on non-school days - then the turnouts would probably have been much smaller.
southern_cross··on No flights, a 4-day week, living off-grid: Climate scientists try to save planet
I did a quick background check of the ones that I could but I don't remember the details; none appeared to have proper training in climate matters, though, that I recall. But just listed in the article itself you've got "sustainable consumption", "marine biology", "carbon management", "cognitive psychologist", etc. (The other day I ran across someone claiming in an online post to be a "climatologist", but in fact his other posts said that he was an oceanographer.) Those fields are at best only tangentially related to matters of climate, and there's probably not a properly trained climatologist in the bunch.

It astounds me that the field of climate science is taken so seriously when it appears to actually mostly just be full of hangers-on, also-rans, and wannabes. And I can think of a few big names in it who have little to no scientific training at all.

southern_cross··on Volkswagen boss criticizes Germany’s decision to privilege coal over nuclear
Merkel’s decision to prematurely shut down Germany's generally safe and successful nuclear power program was quite frankly just stupid.
southern_cross··on Ask HN: Client replaced me with offshore team – what could I have done?
Did you consider remote, on-shore resources? Perhaps work-at-home folks, or those working remotely from other US cities? I ask because I've run into people who would otherwise normally insist that their domestic resources be local and in-house, but then would end up off-shoring stuff instead. WTF?
southern_cross··on No flights, a 4-day week, living off-grid: Climate scientists try to save planet
I'm getting quite annoyed now with the number of people who have little to no training in matters of climate getting called "climate scientists" by the press, or representing themselves as such.
southern_cross··on Nestle creates wrapper that degrades in the sea within six months
Cellophane is basically a form of paper but it looks and feels like plastic. It's been around forever and is completely biodegradable. I expect that this packaging is maybe just new form of that.
southern_cross··on Ask HN: Client replaced me with offshore team – what could I have done?
My experience dealing with such folks 10 or 15 years ago was that even if the person presented to you as the "provider" was actually the person doing the work (and not just a frontman for others), you were lucky to be able to hold onto them for a year. I see that others here are saying just six months, though.

Also, promises were made which were broken almost immediately. For example, there was a promise made that all meetings would be conducted on US time as opposed to Indian time. But only two weeks into the contract I noticed that our US outsourcing manager was routinely coming into the office late, where before she was always quite punctual. When I asked about this I was told that it was because she was now having regular 3 AM meetings with the folks in India.

We were also told (all of us) by upper management that if the whole thing didn't work out as planned, then WE would be the ones held responsible for this, not the outsourcing folks. You can imagine how well this went down. It became routine for some people to just lie to their bosses about well how things were actually going, all while looking for other jobs elsewhere because they knew it was going to hit the fan soon enough. In one particular case that I remember, I attended a teleconference with a project manager where folks were laying it on the line and being honest about how badly things were going. Then in an immediately following teleconference (which I also attended) this project manager turned around and flat-out lied to his bosses by telling them that everything was going great! He bailed for another job at another company before he really got caught out on this though.

The company finally got wise and cut loose the outsourcing group after a couple of years. But by that time things were in such bad shape that they were considering just tossing out their custom software (which they'd spent decades developing) and replacing it with some kind of package. I don't know how far along they got with that before the big bankruptcy came, though.

Ever since they emerged from that bankruptcy (and then only barely, after enduring great pain) they've been looking for a buyer, but with no great success. They've finally found one now, though, except that one of the conditions of the buyout is that all of upper management is going to lose their jobs. Oh well!

southern_cross··on Ask HN: Client replaced me with offshore team – what could I have done?
If they survive this experience, there will probably still be good money to be made helping clean up the mess which will no doubt occur here.
southern_cross··on Microsoft developer reveals Linux is now more used on Azure than Windows Server
> We only have two operating systems now Windows and Linux.

That all depends on what platform(s) you're using. For example, IBM still gives you zOS, AIX, the System i OS, and so on. And there are other operating systems for other platforms.

The computing world doesn't begin and end with Wintel, you know; it may seem that way sometimes, though.

southern_cross··on IT professionals should work in a mainframe environment at some point (2015)
Having spent my entire career with one foot on the "legacy" side of things (mainframe-like systems) and the other on the Wintel side, I can tell you that I've had to deal with any number of problems on the Wintel side that generally just wouldn't happen - and indeed in many cases couldn't happen - on the legacy side.

As an example of how things are done on the legacy side, I was once dealing with a piece of Power hardware which could be configured as either a Linux system or an iSeries system. There was a USB port in the hardware which was enabled on Linux systems but disabled on iSeries systems, and AFAIK it couldn't be enabled, either. This puzzled me at first, until I found out how USB ports can be used to attack systems and then it made perfect sense - they had chosen to disable the USB port for security reasons.

southern_cross··on IT professionals should work in a mainframe environment at some point (2015)
> Was there never a firmware bug that would take down an entire mainframe?

Yes, there was quite an ugly one not that long ago in fact. A local mega-corporation which still has some mainframes had its main (and redundant) systems just roll over and die suddenly, plus their hot backup systems which were offsite. I don't remember all of the details, but IIRC this was a case of "We [the vendor] knew we had a major bug, and we had a fix for it, but we were remiss about getting it out to all of our customers in a timely manner." This type of thing is shockingly rare in the mainframe world, though.

southern_cross··on IT professionals should work in a mainframe environment at some point (2015)
Pretty much all of the related documentation is publicly available, AFAIK, and freely accessible on the internet from what I can tell. This availabilty is actually a legal requirement from times past, IIRC.
southern_cross··on IT professionals should work in a mainframe environment at some point (2015)
Open a terminal session on pretty much any platform. If it defaults to being 80 columns wide, guess where that width comes from.
southern_cross··on Average Global Temperatures since 1850
Why the change?
southern_cross··on Average Global Temperatures since 1850
If you've read a few of the relevant papers and reports like I have, then you would know that they routinely state that they assume that most of the errors and uncertainties and such cancel out. But mathematically you can't get away with that; instead you have to know that they mostly cancel out, using whatever methods legitimately allow you to know this. But since we only have really good instrumentation and data going back at most a few decades, there's no way they can actually do that (at least for most of the historical data), so instead they just pretend.

And to my point, no, you can't claim that the errors in various temperature readings mostly cancel each other out, without having any solid proof of that. Nor can you then turn around and claim that since there are enough errors out there that obviously don't cancel out, that this then gives you the right to set loose a computer program to blindly "correct" those errors, said program having been constructed using whatever models and biases you were operating under at the time. (Those "corrections" may not be anywhere close to accurate, in other words.) But that's exactly the kind of thing they've been doing.

southern_cross··on Average Global Temperatures since 1850
At the time I went back later to look at the data again, almost none of the various links on the relevant web pages still worked. Some working links claimed to link to both raw and adjusted data but then didn't actually have the raw data. Some still had things like precipitation data but the temperature data itself was now missing. Some claimed to have "raw" data but it wasn't the data I was actually looking for and had accessed in the past. And so on. I know that I saw at least one statement which seemed to indicate that the data I was looking for was no longer available for legal reasons.

"Legal reasons" was the cover they used to not make this data available to begin with, but some authority or another finally forced their hand here. It wouldn't surprise me to find that they still don't want it out there, and so it may only be available on an on-again, off-again basis, maybe only after somebody complains about not being able to get it. Nor would I be surprised to find that the data itself mysteriously changes over time, as many have claimed. I believe that they have even admitted to such - that they routinely "correct" various data sets, meaning that what you see today may be different from what you see tomorrow.

In any case, I didn't expend a lot of effort the second time around, and the first time around I was mostly interested in what the "official", final data sets were claiming about temperatures (at least at first), because that was what was being put out to the public. And after finding issues with local temps, I ultimately went out and got local data from local sources, completely bypassing the official sources. And one of the first things I discovered was that there was an awful lot of data - both old and new - that was ultimately marked as "missing" in the official records but was sitting there plain as day in the local records. I never did quite figure out what was going on there either, but I have my suspicions.

The whole process just left me with a bad taste in my mouth, and so I don't generally trust anything other than the original station data from the original sources. The HadCRUT4 stuff may be a bit better; I haven't really looked into it but others have and they say it can't really be trusted either.

southern_cross··on Average Global Temperatures since 1850
Check my comment history from another thread a little while back to see details about problems I've found with Berkeley Earth. But the short version is that the charts and graphics provided by those folks for my local area, and created by others using their data, seem to bear little resemblance to the reality of the situation. Feel free to follow up on the links provided there to see what you can see about your own local area.
southern_cross··on Average Global Temperatures since 1850
I probably wouldn't call it fraud (others might, though) as much as I would call it scientific incompetence in general (it appears that many "scientists" these days, across a number of different fields, are actually quite bad at doing science; this probably isn't a new phenomenon, though, there's just a lot more of it these days), mixed with generally crap data, mixed with bad statistical methods (there's been a lot of talk about problems with this lately), mixed with an overwhelming need to get your papers published by doing whatever it takes.

Having read scientific journals myself on and off for several decades now, one of the things I've noticed is that once a paper gets published in a reputable peer-reviewed journal, then that opens the floodgates for other related papers to get published using related data and related methods. And that's true even if the original paper used highly questionable data and highly questionable methods, as so many do these days.

The reality of scientific publishing today is that scientists need something - anything - of theirs to get published in order to build and maintain their professional reputations. And journals need something - anything - to publish; usually something provocative, too, otherwise nobody would bother paying the high fees that they charge. So a lot of what they publish is just their version of clickbait.

Funny you should mention Japan: Back when I did my deep dive, one of the cities in Japan (Tokyo, I think it was) was being held up as a worst case example for warming. And if you looked at the raw temperature data, the warming there was kind of scary enough as it was, but in the adjusted data it was just horrific. And I thought to myself that one of two things was going on here: Either the level of warming that was being claimed to have occurred there didn't actually occur, or that it puts lie to the notion that humans and flora and fauna can't readily adapt to such warming. After all, it's not like Tokyo is an apocalyptic dead zone or anything, now is it?

As to the raw data itself, the last time I checked the raw HadCRUT3 data that I used in my deep dive was no longer available (I kept running into broken links and such), and this data had only been provided under duress in the first place. I didn't really strain any muscles trying to look for it again, though. Nor did I originally have much luck trying to find similar data for HadCRUT4 (again I didn't look too hard), but I have seen passing references to it being out there somewhere.

And by "raw" I mean the data as it originally came in from the various temperature stations, without being manipulated in any way except maybe to get it all in a common format for easy processing. But apparently what I call "raw" and what some other folks call "raw" can be quite different things.

And unlike your situation, when I looked at the HadCRUT3 data (at least the version that existed at the time; I know they made some changes to it afterwards) what I found there was appalling. So either massive fraud was going on at the time, or (more likely) they had just allowed their computer algorithms to run amok on it without really quality checking the final results.

As to stations "not changing during that time period", I forget the details but you should be aware that some folks (not me) have gone so far as to track down a few such stations (those which were well-documented and well-maintained, but with no documented moves or changes), only to find that the algorithms had made adjustments to them anyway! As for the local station that I used, the adjustments were such that it made it look like this station had shifted from condition A to condition B (that it had moved or whatever), then shifted back to condition A, then back to condition B, and so on, and that it shifted by exactly the same amount every time, too. Then rinse and repeat, every few years, which is hardly a realistic scenario.

BTW, all of those changes were warming changes, too. There was never a cooling change that I saw, at least not for my local station nor the handful of other stations that I also checked. The most that I saw was those periodic shifts back from the "adjusted" (warmer) data to the "raw" (cooler) data.

I did that deep dive about ten years ago, BTW, and the local data set I used went back to about 1870 or so - a solid 130+ years of data. I know a lot has changed in those ten years, but I don't know that much has really changed for the better concerning the data or the algorithms being used to process it.

southern_cross··on Average Global Temperatures since 1850
Funny you should mention this. This was one of the other things that really drew my attention towards the whole climate situation many years back. I was in a techie forum somewhere when the subject of climate came up, and one of the folks there mentioned that he was something of a data hoarder (which is a real thing, I guess). And he said that he had copies of historical temperature data downloaded from various years, and that he had noticed the numbers sometimes magically changing from year to year. He said that it appeared to him that the data sets were being tampered with. And most everybody else there (not me) jumped all over him, calling him a liar and saying that reputable scientists would never do such a thing! Except, of course, that's exactly what they've been doing.
southern_cross··on Average Global Temperatures since 1850
It appears that Berkeley didn't actually do what they claimed to do, though, if you go back and review what they did. In fact, at this point in time I'm pretty much convinced that they were just providing a "false front" - pretending to be skeptical about the situation when they actually weren't so from the beginning. At the very least they used the same questionable data and the same (or similar) algorithms that the other groups were using.

As I believe I've already commented about in this thread, a few years back I did something of a "deep dive" on temperature data, paying particular attention to the temperature records in my own area. What I found there at the time was appalling, and even if I go check Berkeley right now what they show there appears to have little or no basis in reality.

Search my comment history for where I go on at some length about Berkeley (BEST) and the problems I see there. I suggest that you follow the links and go check out some things for yourself.

(Forgot to add) When I reviewed local temperature records myself, dating back to 1870 or so, I did indeed see a real but modest warming trend. But it was nothing like the warming which showed up after you got finished "adjusting" the data, which the climate folks routinely do.

As to deep ocean temps and such, lately those folks have been claiming to measure temperature changes on the order of 1/1000th of a degree per year, if not less. Now I don't know about you, but that just strikes me as BS on the face of it - more "statistical noise" than anything else. There are also claims made about ice melt and such, but if you do the math (the amount of ice claimed to have melted vs. the amount of ice still sitting there), you see that it falls within the same type of range - not even rounding error, just "noise".

southern_cross··on Average Global Temperatures since 1850
> I've been told that renewable are now grid competitive in cost and the power system is switching over to them naturally.

These are more lies and half-truths, for the most part. Wind and solar as always quoted on a "nameplate" basis - how much power they can theoretically produce under ideal conditions. But most don't produce anywhere near that, on average, and I suspect that many can't even make their "nameplate" promises either. Add in the fact that they will have to have more traditional power plants as backup for when they fail to produce, and actual costs are easily a multiple of what is currently being quoted, perhaps a relatively high multiple at that.

southern_cross··on Average Global Temperatures since 1850
> I guess what I am saying is I don't believe you, and most of New Orleans going into the ocean as well.

And why not? You could, you know, lift a finger and go check out for yourself the relevant local news reports about the current and past situation, but you have to go back a few years now to see how it all actually got started.

And pretty much all of coastal Louisiana is naturally subsiding (sinking) anyway. (The same is true for Texas, BTW, including much of its interior.) Flood control projects built on the Mississippi River over the past century have made the problem far more readily apparent today than it would otherwise be.

southern_cross··on Average Global Temperatures since 1850
On a millennium scale level an increase in global temperatures has been occurring for about 15,000 years (give or take), since the start of the last interglacial. On a century scale level temperatures have been increasing for about 150 years, since the end of the Little Ice Age. On a decadal level temperatures have been increasing since the great "Global Cooling" scare of the 1970s.

So it should be no surprise, then, that right now temps may be a bit on the warm side, comparatively speaking. This situation might be quite inconvenient for us, though.

southern_cross··on Average Global Temperatures since 1850
That's exactly what they've been doing! Or, perhaps more correctly, they've let their "algorithms" run amok without doing any quality control on the final results, thereby turning modest warming into "scary" warming. Whether this was intentional or not is debatable (see https://en.wikipedia.org/wiki/Hanlon's_razor), but it certainly looked that way to me at the time.

About ten years ago, after some remarkably incorrect statements about local heat levels made by the folks at NOAA or wherever, and then repeated (but very quickly retracted) by our own local weather folk, I went to the trouble of doing a bit of a deep dive on the HadCrut3 data sets. And what I found there was appalling. Other folks did more comprehensive deep dives and found far more problems with it than I had.

I could only do what I did at the time because some authority (I forget who) had finally forced the entire data set to be released to the public, over the strenuous objections of the folks who administer that data. Much of that data has since been hidden again, though, from what I can tell.

That was the older HadCRUT3 data set. The newest one is HadCRUT4, but I haven't done any kind of deep dive on that. (Without digging further into the matter I don't even know if there is enough data publicly available to do the kind of analysis on it that I did on the earlier set.) But other people have, and have noted serious problems with it, and have even written entire books about that. The short version, though, is that there is an awful lot of "data" out there which they're using that is mostly just made up, and what is genuine has been adjusted so much that it can no longer really be considered "data" at all.

southern_cross··on Average Global Temperatures since 1850
What lack of data would convince you that apocalyptic ACC concerns were largely overblown, or at least unjustified? Because that's what you're dealing with here - a remarkable lack of quality, unadulterated data. Most people don't have a clue about this, though; they just trust what they're being told.
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