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Earth Growing Due to Melting Glaciers

Dr. Shim writes "Some interesting (and rather frightening) news over at Space.com tells that the Earth is growing around the equator due to the fact that ice in the Antarctic (and other areas) is melting at an alarming rate."

24 of 179 comments (clear)

  1. Re:*sigh* by MindStalker · · Score: 5, Insightful

    Wow, people complain when the US thinks its responsible for the entire world. And complain when it doesn't.

  2. Alarmists... by stjobe · · Score: 4, Insightful

    Is it just me, or does anyone else get the feeling that this is a sensationalistic, alarmist write-up of a marginally interesting phenomena?

    So, the earth has gained 0.3 percent around the equator, and the glaciers are still retreating. This is in my eyes neither "rather frightening" nor "an alarming rate".

    Something to keep an eye on, certainly, and something to look into the reasons why, of course, but let's not press the big red panic button just yet, ok?

    Scientists -- or as the case may be, reporters -- out for a quick 15 minutes of fame is my take on this "rather frightening" story.

    --
    "Total destruction the only solution" - Bob Marley
    1. Re:Alarmists... by smoondog · · Score: 2, Insightful

      I totally agree. I'm not sure why every time a scientist reports an observed change whether it be climate, ecological, etc., the sensationalist media immediately raises the alarm that it is a cause for concern. There is no law of nature that says change is going to be detrimental.

      -Sean

    2. Re:Alarmists... by Oddly_Drac · · Score: 5, Insightful

      "Is it just me, or does anyone else get the feeling that this is a sensationalistic, alarmist write-up of a marginally interesting phenomena?"

      It's you.

      "the earth has gained 0.3 percent around the equator"

      Which means that the sea level is rising. You don't consider this interesting?

      "This is in my eyes neither "rather frightening" nor "an alarming rate"."

      Of course by the time you consider it alarming or frightening, it's probably going to be too late to do something. I'd consider for the moment the change in albedo produced by the sea level rising, or the fact that this is going to destabilise land structures to the point where erosion can cause tsunamai from land slippage, not to mention the effect on active volcanos, or the increase in tides.

      Then there's the quasi-stable structure of things like the ice-tongue that channels the gulfstream around the UK, and which have an impact on sea life, both shallow and deep. Not evolutionary scale, but within a couple of decades.

      While I'm not suggesting that reporters get it wrong, I _really_ hate the implication that we should just sit on the information until we're sure, simply because it's hard to prove.

      We've gone to war on less evidence.

      --
      Oddly Draconis
      Too cynical to live, too stubborn to die.
    3. Re:Alarmists... by Oddly_Drac · · Score: 4, Insightful

      "There is no law of nature that says change is going to be detrimental."

      You occupy a niche that is admittedly quite wide-ranging, but don't make the mistake of assuming that the planet might become uninhabitable by members of your niche within short order at some point. The natural history museums are full of species whose niche disappeared.

      Oh, and any change away from the conditions that are viable for life can be considered detrimental.

      --
      Oddly Draconis
      Too cynical to live, too stubborn to die.
    4. Re:Alarmists... by Scarblac · · Score: 4, Insightful

      Of course by the time you consider it alarming or frightening, it's probably going to be too late to do something.

      Where are mod points when I need them... I want that sentence on a plaque on my wall.

      --
      I believe posters are recognized by their sig. So I made one.
    5. Re:Alarmists... by ktanmay · · Score: 2, Insightful

      Ok, given, a little towards the alarmist reaction, but then one thought strikes me, what effect will this increase in equatorial size have on the ocean tides?

      Tides are something we experience everyday, and an increase or decrease in volume will be felt. I don't know, I'm probably missing the fundamental concept here, but to me, the port authorities may just start taking note of it soon.

    6. Re:Alarmists... by Mr.+Slippery · · Score: 3, Insightful
      Something to keep an eye on, certainly, and something to look into the reasons why, of course, but let's not press the big red panic button just yet, ok?

      If I lived on a low-lying island or costal region, I'd be jumping up an down on that button. Small rises in sea level can lead to large areas going from beachfront property to shallow water, displacing millions of people.

      --
      Tom Swiss | the infamous tms | my blog
      You cannot wash away blood with blood
    7. Re:Alarmists... by b-baggins · · Score: 3, Insightful

      Oh, please. None of those species were intelligent, technological and industrialized. Good grief.

      Human beings live successfully in EVERY climate on the globe. Our environmental niche is the entire planet, for crying out loud.

      --
      You can tell a great deal about the character of a man by observing those who hate him.
    8. Re:Alarmists... by Jerf · · Score: 4, Insightful

      Oh, and any change away from the conditions that are viable for life can be considered detrimental.

      Are you so sure that the conditions we are experiencing right now are the precisely optimal conditions for life?

      Are you so sure that a couple of degrees warmer might not be a good thing? Or that a couple of degrees colder might not be a good thing?

      How are you so sure?

      If the global temperature drops a degree, it's a catastrophe. If the global temperature rises a degree, it's a catastrophe. If the global CO2 levels wiggle by a percent, it's a catastrophe. If the global aldebo level wiggles byt a fraction of a percent, it's a catastrophe. If the ice at some local lake averages thinner then 50 years ago, it's a catastrophe. If some lake freezes a month sooner then 50 years ago, it's a catastrophe. If the glaciers melt, it's a catastrophe. If the glaciers grow, it's a catastrophe. If the sea levels rise, it's a catastrophe. If the sea levels sink, it's a catastrophe. If the acidity in the rain rises, it's a catastrophe. If the acidity in the rain falls, it's a catastrophe. If the suns output increases, it's a catastrophe. If the suns output decreases, it's a catastrophe. If some species goes extinct, it's a catastrophe. (Remarkably, nobody seems to get too uptight about new species, but I'm sure it's only a matter of time.)

      If some natural climatic process occurs, it's a catastrophe. If some natural climatic process doesn't occur, it's a catastrophe.

      Climates change. It's what they do. The conditions right now aren't the only viable ones for life, as exemplified by the vast array of conditions life has thrived in throughout Earth's history.

      This kind of panicking every time an indicator wiggles is tiring and pointless. The indicators will wiggle. Global warming will occur, and it will be followed by a period of global cooling. The sea level will rise, and it will subsequently fall. The CO2 levels will rise, and they will subsequently fall. The sun's output will rise, and it will subsequently fall. All of these things have occured several times, even within humanity's life time and even within yours, for some of these indicators.

      There is some merit in debating how these things will affect us, but acting as if a statement like "don't make the mistake of assuming that the planet might become uninhabitable by members of your niche within short order at some point" is worth panicking over is unjustified. Debating the impact of long terms trends is interesting; twitching, having a fit, and screaming at everyone else who refuses to have a fit every time an indicator goes somewhere is not.

      Chill out. Pun intended.

      (Personally, I'm still thinking a couple of degrees warmer will be a net benefit; one should not analyse merely the costs without considering the benefits, and surprise surprise, that's exactly what twitchy, panicky, screamy environmentalists do. Sure, we lose a couple of inches of coastline, but we get a lot more arable land and perhaps more rain will help roll some deserts back. Who knows? Nobody, that's who. But I can tell you it's been warmer before and life seemed to be quite prolific. Fortunately nothing at those times was smart enough to panic at unstoppable changes.)

    9. Re:Alarmists... by IPFreely · · Score: 4, Insightful
      There is no law of nature that says change is going to be detrimental.

      It's not a natural law, it's a political, financial and resource law.

      Right now, we have a fairly complex structure of food production needed to keep 6+ billion humans alive. This includes a lot of land in specific places set aside for crops and livestock. If the weather patterns change, earth as a whole will likely still be habitable for humans in general, but any given piece of land may not be suitable for food production. If the current crop lands go bad, and some other land, a thousand miles away suddenly becomes much better for that same crop, then you have to move the whole production machine over to the new location.

      This doesn't even account for fights over property rights, cost liabilities, and what to eat during the time it takes to move. A lot of current companies/countries will lose power/influence, and a lot of other landowners, and other countries, suddenly find themselves in control of valuable resources that weren't valuable before. It will, for a while at least, be even more politically and economically destabalizing than the constant bickering over oil is now.

      THAT is what the alarmist are talking about, and that is what all the anti-alarmist seem to not understand.

      --
      There is nothing so silly as other peoples traditions, and nothing so sacred as our own.
    10. Re:Alarmists... by deman1985 · · Score: 4, Insightful

      I won't argue about whether it's too early to tell or not; the simple fact of the matter is that the climate is changing and there's not a damn thing anyone can do about it. Will it cause some species of animals to go extinct? Quite possibly. Is it going to force us to change food production and abandon areas that are no longer inhabitable? Almost certainly.

      But what has been stated over and over and everyone seems to ignore is that the Earth is BOUND TO CHANGE. There is nobody who can question that. The climate goes through cycles which are not necessarily related at all to any pollutants we have introduced during the period of human civilization. Even if this does turn out to be the case, then guess what? We just make equipment run as efficiently as we can and when the time comes that the climate has shifted usable land, then we start shifting food production and residental areas accordingly.

      Yes, it is a shame that certain species will die off and may never see the face of the Earth again, but people have to keep in mind that it's all part of nature. Climactic changes are one of many factors that contribute to the evolution of our planet. If the world hadn't gone through such changes in the past to force older species to extinction, the human race may have never become the dominant species it is now. The major difference that sets us apart from other species is that we are intelligent and can adapt to our environment. Short of the sun burning out (which will also happen eventually), the human race will always find ways of surviving on this planet-- even if that means living in man-made greenhouses to isolate us from the outside environment.

    11. Re:Alarmists... by squiggleslash · · Score: 3, Insightful
      Fallacy of overprecision. Of course we don't live under the water because we are air breathers, but we COULD if we had to.
      As a scuba diver, I can tell you there are some wonderful things about being underwater, but I wouldn't describe it as an area large numbers of humans could live for an extended period of time using the technologies available today. Earth's crushing gravity, to begin with, makes the proposition of being more than a few hundred feet under water less technically easy than being in space.
      We don't live on the poles because we don't have to. But we COULD if we had to.
      Well, we'd have enormous problems with food supply. People who currently visit the poles do so with fairly substantial off-site support. Suppose Earth becomes ice-covered, where would be this off-site support? How would we get it?

      Look, I'll state the obvious: We have several billion people on Earth at the moment. It's one thing to put a few thousand people in submarines across the planet underwater, able to surface in the event of an emergency or every year or so to get supplies, it's quite another to put everyone under water, permanently. Likewise, supporting four billion people on an ice-covered planet isn't going to work either.

      Deserts barely inhabited? Have you looked at the middle east lately? The American southwest? The Mongolian Steppes? Please.
      All of the desert areas you mention are barely inhabited - there's occasional outposts and one or two cities (some of dramatic size, such as Las Vegas) that have substantial external help. Las Vegas, as an obvious example, is not self-supporting. It relies for funding upon millions of visitors pumping enormous sums of money into it - money which is used to get water, food, and power from resource generators many hundreds of miles away.

      Trade provides a perversion of logistics that hides local efficiencies and allows things to be supported by external resources; without those external resources, no amount of money is going to make those locations practical. Your final suggestion that we could irrigate a planet covered in sand assumes there's somewhere to irrigate from.

      --
      You are not alone. This is not normal. None of this is normal.
    12. Re:Alarmists... by hackus · · Score: 2, Insightful

      Well, not so fast.

      The Dinosaurs survived quite well, with no brains, or very little brains for a time scale that makes our existence fairly insignificant by comparison.

      I would also like to point out, that the estimated age of the Universe is 14 Billion years.

      For about 10 billion of those years we assume, the earth wasn't formed.

      Well, when the Earth did form, many billions of years went by, about 3 billion, before we had any complex life forms.

      After they arrived we had one very sophisticated life form/species called the Dinosaurs.

      What makes the interesting:

      1) Longest lived of the complex forms, that we know of. They were phenominally successful.

      2) They occupied just about every niche, on land, in the sea and in the air.

      3) They did so for I think about 250 Million years.

      4) Intelligent, no, probably not and dumb as your average house cat some of the smartest ones.

      Point is, that they survived for quite a while with no brains.

      I also point out that like Stephan J Gould once said, "Intelligence has yet to be proven as an advantage to a species."

      I actually think, given the number of species over the time scales we are talking about, that intelligence is fairly rare.

      If we are to believe the latest theories regarding the evolution of life, natural selection tends to select species that can survive and flourish.

      If this is true, it doesn't bode well for intelligence. For if we truly believe in the scientific principles of Darwinism, then intelligence must be a trait that is detrimental, and tends to kill off species.

      Our planet has had billions of years, many billions of species, and only one we know of is intelligent.

      If we truly believe that our planet is not special, and that once a Universe forms, scientific principles that govern that Universe are true whereever and whenever.

      I think it is safe to say given our planet as a quite ordinary planet around a quite ordinary star, that life is probably common, complex life is also too, common.

      But Intelligent life that is self aware borders on the impossible or quirk and probably is very short lived.

      (i.e. It develops technology that exstinguishes its existence within 250,000 years after it becomes self aware.)

      Mathematically this makes sense because we should be visited by now if there are any other civilizations in this Galaxy.

      So I think as a Niche, we compared to other species are very extinguishable, and I do not believe technology offers us any advantages.

      That has yet to be seen.

      Like I said, the Dino's had no technology and they were far more succesful than we have ever been.

      -Hack

      --
      Got Geometrodynamics? Awe, too hard to figure out? Too bad.
  3. Nice Troll, but.... by DesScorp · · Score: 3, Insightful

    It's not "just him", either. Nice way to try to marginalize his viewpoint, which is, by the way, shared by more than just a "niche". There are a lot of scientists (and not just ordinary citizens) that are going "ok, slow down, it's not neccessarily a catastrophe". As many people have pointed out in the past, the Earth frequently goes through changes like this for reasons that are unknown, and that predate the industrial revolution. And lets face it, this whole piece was about pointing a finger at mankind's evil technological ways and saying "see what we're doing to the Earth?"

    The Earth's sea level has risen and fallen over the centuries many times, without any input from man. The previous poster was just pointing out that this happens, and that the article might be just a tad sensationlistic in order to promote an agenda (and we know THAT nevers happens in science or anywhere else, right?).

    If you agree with that agenda, fine, say so. But when you try to make opposing views look like fringe nuts because it suits your purposes, you just end up looking like an ass.

    --
    Life is hard, and the world is cruel
  4. What do you propose we do? by kippy · · Score: 1, Insightful

    This is for all the people who are crying for action against this rise in sea level.

    Without a better understanding of the full dynamics of the geology, climatology and biology involved in this thing, any attempts to reverse it might have unintended and unpredictable side effects.

    Cut CO2 output? Sounds good but even though CO2 is the most common greenhouse gas, it's also one of the weakest. Lower levels of CO2 could also be problems for the plant biosphere being the CO2 breathing, carbon fixers that they are.

    Cut CFC and PFC output? Also sounds nice since they are thousands of times more efficient at trapping heat. Is there any well agreed upon data that says that this melting is a result of man made greenhouse gasses and not something completely out of our control?

    Rapid and drastic environmental changes can be caused by natural phenomena. Without a better understanding of the root cause of climate change, regulating our activity is at best a shot in the dark. At worst it could cause bigger problems.

    1. Re:What do you propose we do? by Lars+T. · · Score: 2, Insightful
      Cut CO2 output? Sounds good but even though CO2 is the most common greenhouse gas, it's also one of the weakest. Lower levels of CO2 could also be problems for the plant biosphere being the CO2 breathing, carbon fixers that they are.

      The plants got by just fine without us raising CO2 levels -that is before we cut down or burned a seizable amount of it.

      --

      Lars T.

      To the guy who modded me down from perfect to terrible Karma - Apple haters still suck

    2. Re:What do you propose we do? by jellisky · · Score: 3, Insightful

      I'm trying to remember where I heard or read this, but, supposedly, when asked about what they would do about the rise in ocean levels by as much as a meter in 50 years, one of the guys who is in charge of the dykes that keep the Netherlands dry replied, "We'll build the wall higher."

      Let's not forget that humans are where we are in the planetary scale of things because of our incredible ability to adapt to our environments. It's not as if these changes will be immediate... you won't go to bed on the oceanfront and find your house flooded by a new meter of water. In fact, most people won't even notice anything, even over the course of a year.

      You make a good point, though. There's lots of people who are running around, crying that the sky is falling... and doing nothing about it or not proposing solutions to the problems. It's truly annoying. I'm not advocating that we do nothing; there have been some "solutions" presented. Whether or not they'll "work" is another problem altogether (e.g. humans may or may not be doing ANYTHING to the climate system), but it's still a start. We have to ultimately accept that change, in many ways and forms, is inevitable and get over the whole "why can't things be the same as before?" attitude that's so prevalent in the western philosophy.

      Okay, end of rant. *laughs.*

      -Jellisky

  5. Visualize! by fm6 · · Score: 2, Insightful
    We're talking a whole planet, not a tennis ball. .3% is a lot. Look at it this way. The planetary diameter is about 7K miles. 0.3% of that is more than 20 miles! No wait, that can't be right. If the sea level had risen by that much somebody probably would have noticed. Time to RTFA...

    Ah, I got it. The articles doesn't say that the bulge has risen by .3%. The equatorial bulge has always been about 0.3% How much has the bulge increased recently? They don't give figures. But they do say that gravitational field changes usually attributed to the "post-glacial rebound" (the geological adjustment to their being less weight at the poles since the end of the last ice age) is twice what it was in 1998.

    That's scary. Why? Well, sea level has been rising for the last 10,000 years, since the end of the last ice age. That rise isn't notice during a human lifetime, of course. But now it appears that the rate of melting has doubled in just the last five years. Still not a lot, but we're pouring greenhouse gasses into the atmosphere faster than ever. Even if we could slow our rate of increase (and Dubya doesn't even want to do that), we'd still be looking at a big change in the ocean configuration.

    Which could lead, ironically enough, to another ice age. If that happens the "junk science" pundits will doubtless insist that the whole greenhouse effect was just a myth. Oh well, I think I'll go fix a cold drink.

  6. A translation of the climate change problem by hopemafia · · Score: 2, Insightful

    Think of the earth as a computer.

    On this computer, there are many files (matter) which are used by programs (natural processes) which all work under the operating system (natural "laws"). We (humans) were clueless newbies who started putzing around on this computer. In the process we have edited files (built things). Now when one of the programs reads a file we have edited it does something different than it did before. Quite often we don't like the results.

    Now that we have become fairly good computer users, we have realized that we have messed up our computer. Although we know what most of the programs do, we still don't know HOW most of the programs work (we're not programmers yet). Since we didn't make a backup before we started messing around (we were newbies then, remember?) we have very little knowledge of what our computer was like before we started changing things.

    Sadly, we don't know any computer geeks who can come fix our computer, so we have to deal with the problem ourselves. We could try to fix the files we've edited, but since we don't understand the programs we don't know exactly what our changes will do. They might even make things worse. We could try not to mess things up any more while we study programming, but our computer might stop working before we learn enough. So we have to do what we can to keep our computer running by making only small changes to files while we study. In the process we'll probably make some mistakes, but hopefully we won't cause a BSOD.

    --
    If God had had a computer it would have taken him 7 months to create the earth...if he even bothered to do it at all.
  7. Re:not growing, changing shape by Mr.+Piddle · · Score: 2, Insightful

    there's a difference, ya know! :)

    Yes, but a shift in mass alters the moment of inertia, so, for a given amount of rotational kinetic energy, the length of our day can change. The effect is probably small, but I'm sure there would be a handful of scientists out there who really care about such things (studying whether a 0.01% change in the day/night cycle affects plants or whatever).

    --
    Vote in November. You won't regret it.
  8. Re:Hmm. by mute47 · · Score: 2, Insightful

    No, but us humans might :D

    --
    Don't mind me, I'm just carping the diem...
  9. Re:not growing, changing shape by DoraLives · · Score: 2, Insightful

    The most salient question regarding any redistribution of water to areas near the equator would involve low lying land (coral atolls) in that area. Folks living in places like that could be very concerned indeed, since a small rise in the water translates directly into a large decrease in the land area upon which they're living.

    --
    Is it fascism yet?
  10. Re:Or another way of putting it by stjobe · · Score: 2, Insightful

    You're missing the point.

    No, you are missing the point. The point -- and it's a sharp point indeed -- is that we have no idea. You're saying it takes longer than a day to clear the pond, I say it might take less than a day. None of us knows, since we don't know the size of the pond, the effectiveness of the cleaning method, the availability of alternative cleaning methods, or even if we really should clean it. We just don't know.

    That is why your analogy was silly.

    for a[ny?] given climatic/environmental issue, we know it's not an easily solvable problem.

    No, we do not know that. This is what I have been trying to tell several people in this thread and in other threads. The heart of the matter is, we do not even know that the issue at hand is a problem. There's just too little research done.

    I'm all for doing more research on the climate, I've stated as much on several occasions in this thread alone. I am not, however, willing to accept that every hiccup on the charts mean that we're doomed.

    You, according to your last paragraph, seem to be willing to do just that.

    --
    "Total destruction the only solution" - Bob Marley