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A Crack in an Antarctic Ice Shelf Grew 17 Miles in the Last Two Months

Jugal K Patel, writing for the NYTimes: A rapidly advancing crack in Antarctica's fourth-largest ice shelf has scientists concerned that it is getting close to a full break. The rift has accelerated this year in an area already vulnerable to warming temperatures. Since December, the crack has grown by the length of about five football fields each day (Editor's note: the link could be paywalled; alternate source). The crack in Larsen C now reaches over 100 miles in length, and some parts of it are as wide as two miles. The tip of the rift is currently only about 20 miles from reaching the other end of the ice shelf. Once the crack reaches all the way across the ice shelf, the break will create one of the largest icebergs ever recorded, according to Project Midas, a research team that has been monitoring the rift since 2014. Because of the amount of stress the crack is placing on the remaining 20 miles of the shelf, the team expects the break soon.

43 of 335 comments (clear)

  1. Well, damn by Kierthos · · Score: 4, Insightful

    It's a good thing that climate change is a load of bollocks according to the Trump administration. I'm sure a group of people as competent as the ones that are around Trump know what they're talking about. I mean, otherwise, we might have to be worried.

    (THIS IS SARCASM)

    --
    Mr. Hu is not a ninja.
    1. Re:Well, damn by Calydor · · Score: 5, Funny

      And the penguins will pay for it!

      --
      -=This sig has nothing to do with my comment. Move along now=-
    2. Re:Well, damn by DontBeAMoran · · Score: 4, Insightful

      Does it matter why the ship is leaking water? Wether it's your fault or not, wouldn't you want to prevent it from sinking?

      --
      #DeleteFacebook
    3. Re:Well, damn by Layzej · · Score: 4, Informative

      The linked article says that these collapses happen naturally. However, ice shelves act as buttresses holding back glaciers flowing down to the coast. The collapse will make the area more vulnerable to climate change.

      Larsen A and B ice shelves, which were situated further north on the Antarctic Peninsula, collapsed in 1995 and 2002, respectively. This resulted in the dramatic acceleration of glaciers behind them, with larger volumes of ice entering the ocean and contributing to sea-level rise.

      Read more at: https://phys.org/news/2017-01-...

    4. Re: Well, damn by ClickOnThis · · Score: 5, Insightful

      The issue is not whether elected leaders should protect the interests of the nationals of their country. Of course they should.

      The issue is whether they should be comfortable campaigning with slogans that echo a tragic part of world history.

      World prosperity is not a zero-sum game. All nations need to protect their interests, but they also need friends, allies, and trading partners. And to keep them, it helps not to act like a dick.

      --
      If it weren't for deadlines, nothing would be late.
    5. Re: Well, damn by John.Banister · · Score: 3

      and put us on the short end of a deal.

      Kinda depends on who's "us." The corporate investors, the corporate board of directors who serve them, the workers put out of a job when the corporation switches to outsourcing, the customers who get shit when the corporation decides to make a cheap, shitty product - all four groups are US citizens.

      I missed it...when exactly did it become wrong to want your country to come out on top when dealing with the rest of the world?

      I also missed it...when exactly did it become wrong to want your country to hold to a better standard than that of looters during a natural disaster? Whatever happened to "I could not love you half so much loved I not honor more" ? When did we decide that our collective behavior as a nation should dive to the same level of shortsighted behavior as that of the assholes among our citizenry who switched to outsourcing, and for the same reasons?

      If you want to talk about what the Chinese government builds, perhaps you'd care to look at how they tax?

    6. Re: Well, damn by Anne+Thwacks · · Score: 2
      AMERICA FIRST

      Yes, but currently its leading in a race to the bottom

      --
      Sent from my ASR33 using ASCII
    7. Re: Well, damn by avandesande · · Score: 2

      That's fine, but this 'wealth leveling' has come about on the backs of US working class with the wealthy not only not contributing but taking advantage of the situation to collect a 'vig' they are putting in their own pockets.

      --
      love is just extroverted narcissism
    8. Re: Well, damn by gawbl · · Score: 3, Insightful

      The USA has been advertising itself as "The Land of the Free" for longer than anyone here has been alive. This marketing campaign has been very effective, allowing the USA to "brain-drain" most of the earth for generations. Other famous USA marketing slogans include:

      "...with Liberty and Justice for All" in the USA Pledge of Allegiance.

      "...your huddled masses, yearning to breathe free", inscribed on the Statue of Liberty.

      "This Land is Your Land", from a popular folk song.

      These slogans reflect long-held USA "core values", and make the USA appear more attractive to citizens of other countries. The resulting influx of immigrants has arguably made the USA a prosperous and powerful country:

            http://www.foxbusiness.com/features/2017/02/06/why-7-companies-are-opposing-trump-travel-ban.html

      IAAWAM (I Am A While American Male), and I believe it is in the long-term best interest of the USA to continue accepting immigrants of all colors. When, for the sake of expediency, the USA compromises its core values (e.g. immigration restrictions, tariffs, torture, religious discrimination, secret prisons, whatever), it sullies our international image, slowing immigration. Even if you ignore the "core values" stuff, overall, immigration has been a good business deal for the USA.

    9. Re: Well, damn by Sumus+Semper+Una · · Score: 4, Insightful

      I mean, what exactly is wrong with our elected American leaders saying they are going to put forth and defend American interests first and foremost when dealing with the rest of the world?

      You seem to be implying that American leaders were not already trying to gain advantages for American interests wherever possible or mitigating the negative effects when it's not possible. We'll just have to differ on our world view on that point.

      Isn't that exactly what we elected them to do?

      Maybe you did. Most people actually have a wide range of issues that they care about. Some of them even care less about America's role on the world stage than they do about the problems in front of them here and now that have nothing to do with the rest of the world. The point is, there are a lot of reasons to vote for a representative. Not everyone sees America throwing its weight around as a #1 priority.

      I mean, nothing wrong with cooperating and helping out other countries in the world, as long as it doesn't go against US interests and put us on the short end of a deal.

      Imagine you're in a village of 196 families. Some of them are bigger than others. Some are richer than others. Some have stronger people than others. You start wondering, why doesn't your family only ever deal with other families so long as you don't get the short end of the deal? Sounds reasonable right?

      Pretty soon, everyone realizes what you're doing and stops dealing with you altogether. Why should they? The only way you ever agree to anything is when it's absolutely even (doesn't happen very often) or you're getting more than they are. In which case, why deal with you at all when there are other options?

      Seriously, other countries out there are working hard for their own interests (see China especially these days, their building of "islands" and claiming more and more of the sea away from their mainland is a prime example)....yet so many in our country seem only too happy to give any advantage or thought to gaining advantage away.

      How is China's island building and Russia's de facto annexation any different than what you want America to become? That's a certain pathway to war. If you want to take exception to nationalistic expansion from your enemies you'd sure as hell better have a moral high ground to speak from if you expect anyone to listen to you.

      I missed it...when exactly did it become wrong to want your country to come out on top when dealing with the rest of the world?

      Around the same time people realized that being a constant asshole to your neighbors isn't an effective long term strategy.

      The world is a contest...every other country out there plays it to win, and yet, there seems to have somehow in recent years, been a generation of US citizens that don't perceive this...they think the world is a warm and friendly place with everyone giving their fair share, holding hands and singing Kumbaya (sp?)....

      Or maybe, juuuuust maybe, the world is more complicated than "I must beat everyone totally, all the time, and if I don't then I lose!" I mean, seriously, if you really truly think that the purpose of every country is to try to rule the entire world, then there would have been a nuclear holocaust as soon as any side armed with nuclear weapons realized that they could not achieve that goal.

      Was it about the same time it seems it became just plain wrong to be born a white male?

      As a white male, I have experienced no personal discrimination or recrimination. Quite the opposite, really. Methinks thou doth project too much.

  2. So What by sexconker · · Score: 5, Funny

    So a chunk of ice falls into the ocean. It'll cool the ocean a bit. I though you wanted it to be colder. Make up your damned minds!

  3. Global warming by DontBeAMoran · · Score: 2
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    #DeleteFacebook
  4. Not believed to be because of climate change by Njovich · · Score: 3, Informative

    Scientists actually don't believe this particular instance to be caused by climate change. So, if people could read up a bit and post something thoughtful instead of having a knee jerk anti-Trump comment, that would be awesome.

    1. Re:Not believed to be because of climate change by OakDragon · · Score: 2, Interesting

      Scientists actually don't believe this particular instance to be caused by climate change. So, if people could read up a bit ...

      This seems counter-intuitive (since everything is caused by climate change). Do you have a source or link?

    2. Re:Not believed to be because of climate change by Anonymous Coward · · Score: 2, Funny

      Got a source for that, Kellyanne?

    3. Re:Not believed to be because of climate change by Njovich · · Score: 3, Interesting

      There is endless documentation about this. Even the article Slashdot linked says nothing about climate change. For a mainstream media example: http://www.usatoday.com/story/...
      "There is no direct evidence to link this event to climate change, he added. Although the general ice shelf decay along the Antarctic Peninsula has been linked to a warming world, this rift appears to have been developing for many decades, and the result is likely natural, according to Project MIDAS."

      Changes in the antarctic are a complicated subject, I suggest reading up before making assumptions.

    4. Re:Not believed to be because of climate change by Anonymous Coward · · Score: 2, Informative

      Scientists are classifying the calving as a geographic event, as opposed to a climate event. It is something that will change the Antarctic landscape and is not necessarily a result of climate change. O'Leary backs that up, saying this event "...is a natural process which occurs once every few decades (the last major event on Larsen C was in the mid-80s)."

      From the article.

    5. Re:Not believed to be because of climate change by DontBeAMoran · · Score: 2

      Give us proof that the crack and the warming started before the industrial revolution and we'll believe you.

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      #DeleteFacebook
  5. Re:Even more fake news by MightyMartian · · Score: 5, Insightful

    Because of course the big money is in being a scientist. All those CEOs, CFOs, CIOs, CTOs and institutional shareholders, why they're basically peasants! Poor dears, won't someone think of the Billionaire Oil Barons?

    --
    The world's burning. Moped Jesus spotted on I50. Details at 11.
  6. Always look on the bright side of life by Fire_Wraith · · Score: 5, Funny

    Everyone is always so down on Global Warming. Why doesn't anyone ever look on the bright side of things? After all, once the icecaps and glaciers all melt, think of how much better the world will be:

    1) Florida will be completely underwater. Not just Miami, but the "Florida Man" parts too.
    2) So will large chunks of the Middle East (though admittedly they'll probably be a bit more worried about the heat than that).
    3) Lots of currently undervalued inland property will become valuable beachfront areas. And without having to fire nuclear missiles at the San Andreas a la Superman!
    4) Huge swathes of inhospitably cold Canadian land will be sunny, warm, and liveable, which will be good news for those of us fleeing the future American hellscape.
    5) Make the Great Lakes Great Again - there will be a new Great Lake, right about where Montreal currently is. (French Canadians underwater? Bonus!)

    Sure, there will be some downsides. The Netherlands will wind up completely underwater, though I'm sure they can build a wall to keep the North Sea out, since they've been doing it for decades already. Install some tidal power generation, and they can even make the North Sea pay for it, too!

  7. 256m3 by tomxor · · Score: 2

    Scientists actually don't believe this particular instance to be caused by climate change. So, if people could read up a bit and post something thoughtful instead of having a knee jerk anti-Trump comment, that would be awesome.

    Yes, the world is divided into 256m3 chunks and z-indexed into a quadtree... at the largest chunk size no interaction occurs with adjacent chunks, this is believed to be a bug introduced by an intersection test optimisation implemented by the creator. A nice side effect is that global warming doesn't affect other things around the world.

    1. Re:256m3 by GuB-42 · · Score: 2

      256m3, quadtree, it is weird. maybe it is 256m2 squares with 1m height resolution.
      With such confusing specifications, bugs are to be expected. Furthermore, this problem sounds a lot like premature optimization. And look at our world, we can't do anything without being overwhelmed by side effects. The creator certainly has good intuition but he is a lousy coder. I'd hate to work with him.

  8. This looks like a job for by jpellino · · Score: 2

    Phil McCracken!

    --
    "Win treats sysadmins better than users. Mac treats users better than sysadmins. Linux treats everyone like sysadmins."
  9. Re:In other good news by aergern · · Score: 2

    If you want that kind of dynasty .. I hear travel isn't banned to and from Saudi. Feel free.

    --
    Tell me what you believe...I'll tell you what you should see.
  10. Re:Even more fake news by XxtraLarGe · · Score: 2, Informative

    So why did the Chinese just sink a shit-ton of money into Solar energy?

    Maybe the Chinese aren't concerned about global warming, but something else. I'm thinking solar is probably a good alternative to burning coal if most of your cities look like this

    --
    Taking guns away from the 99% gives the 1% 100% of the power.
  11. Get United Arab Emirates to sponsor hauling it ... by WoodstockJeff · · Score: 2

    ... north to flood the desert. It's something that has been talked about for decades. Now there's a opportunity!

  12. Re:Even more fake news by XXongo · · Score: 4, Informative

    National Review is not a good source for science information, sorry-- it's an opinion magazine-- and National Review quoting a story from the Daily Mail is really not a reliable source-- Daily Mail is the kind of tabloid that gives the word "tabloid jounalism" its name.

  13. In short by argStyopa · · Score: 2

    "Earth changes, sometimes these charges are not great for the seething mass of 7 billion hairless apes that think they're all that. News at 11."

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    -Styopa
  14. No Thanks by OrangeTide · · Score: 2

    You may have an ocean view, but it will still be Nevada.

    --
    “Common sense is not so common.” — Voltaire
  15. Re:Even more fake news by XxtraLarGe · · Score: 3, Informative

    So you mean pollution from burning fossil fuels....

    Yes, but the pragmatic goal is air quality, not stopping AGW. That is probably more of a side-effect as opposed to the primary motivator.

    --
    Taking guns away from the 99% gives the 1% 100% of the power.
  16. Re:Who cares? by DickBreath · · Score: 3

    We can just build a wall around the crack. Problem solved.

    Similarly the children of a hoarder can just build a wall around it.

    Its no worse a challenge than building a wall along the Canada-Australia border.

    Simple solutions for simple problems. And if that doesn't work, sign an executive order to do something about it. Heck, maybe a few tweets can fix the crack.

    --

    I'll see your senator, and I'll raise you two judges.
  17. Re:Even more fake news by avandesande · · Score: 2

    Even if you are a rank and file professor most of your time is spent writing requests for funding... and the more money you bring in the more you get paid etc.

    --
    love is just extroverted narcissism
  18. Re:Even more fake news by MightyMartian · · Score: 3, Informative

    Do you have any evidence at all that this is in fact a career path of any researcher? This looks more like one of those "Researchers are lazy, evil and greedy" lines of thought.

    For the record, want to make lots of money, in general, don't go into the sciences. Yes, there are a few science careers that can make oodles, but for the most part, science is not a path to fame and fortune.

    --
    The world's burning. Moped Jesus spotted on I50. Details at 11.
  19. Re:Even more fake news by hey! · · Score: 5, Informative

    Actually it's just the National Review passing along an "expose" by The Daily Mail. This is the same "newspaper" that claimed a 63 year-old woman became pregnant with baby squid after eating calimari.

    If you look into the objections, they're rubbish. The paper in question (Karl et al) is part of an ongoing back-and-forth by scientists over the degree of warming post-1998, so if it is part of a conspiracy by the scientific establishment to cover up contrary data it's a pretty lame conspiracy because it let both sides of the data out.

    As for Karl et al, it's a highly technical paper, but to cut to the chase the reason it has the denialists in an uproar is that it proposes a method that erases their precious, cherry-picked post '98 "hiatus". That hiatus didn't exist if you smoothed the data or chose any other starting point but the record setting '98, and it was was blown away by 2014-2016 anyhow. So this is beating a dead horse that was barely alive to begin with. The method in the Karl paper also suggests that the rate of warming since the early 20th C is actually lower than previously believed. Alarmist!

    The thing about this kind of bullshit response is that the attraction of a conspiracy theory is that it's quick and easy to understand, as long as you don't try to square it with actual events. People find CTs credible because it says the people bearing bad news are out to get them.

    --
    Post may contain irony: discontinue use if experiencing mood swings, nausea or elevated blood pressure.
  20. Re:Even more fake news by MightyMartian · · Score: 5, Insightful

    There would still be climatologists whether AGW was real or not. The value of tracking regional and global climate is pretty high. The actual fact is that it has been know for over a century that increasing CO2 concentrations in the atmosphere would inevitably lead to more energy being trapped in the lower atmosphere. You can make all the claims you want that climatology is some of grant boon, but the fact of the matter is that is how most research works, particularly basic research.

    Do you have an actual critique of the science, or is this just yet another "scientists are warped and twisted". You do understand that grants aren't just handed out based on the topic heading. Grant applications actually require researchers to make a strong argument for why the grant should be made. You act as if it is some sort of popularity contest, but I get it, you despise the research in question, hate the results it provides, but can't really debunk it, so it's time to attack the scientists. I fail to understand how defunding climate research will make human-caused climate change go away. When you're racing towards a brick wall, I know of no evidence that closing your eyes means you won't hit it.

    Grow up. The universe is what it is, and CO2 has the properties it has, and not studying those properties and there large scale effects won't make those effects go away. Reality cannot be argued away.

    --
    The world's burning. Moped Jesus spotted on I50. Details at 11.
  21. Personal experiences by MrKaos · · Score: 2

    I spend a lot of time in the ocean and this summer it has been following the trend started in 2010 of being really cold when outside temps are 42C.

    I know people are about to say that it's because I'm getting older and more sensitive however I spend an average 2 hours body surfing which means, apart from my head, I am fully immersed, treading water the whole time. I've surfed the same break for years usually about 3-5 metres deep and that has always been the same for the last 20 years. I've been in the water during winter too when it is so cold it feels like your skin is burning, so I can tolerate really cold water. My entire body tells me it is wrong for the ocean to feel the way it does now.

    Second thing is bushfires. I few years ago we had bushfires go through *rainforest* and burn the roots of the trees down to about a metre below the soil line. These rainforests have been unburnt for thousands of years and are not adapted to fire as opposed to normal bush, which is adapted to fire. This has nothing to do with my personal experience because soil strata core extracts tell us that is how the rainforest has behaved for a lot longer than we have been around for.

    Some people out there like to use their personal experiences as a way to falsify and invalidate the work being done to warn us that our civilization has to mend it's way.

    My personal experiences tell me something quite different. They tell me the world is changing in a profound way, the work of the climate scientists explain the experiences I've had and news like this makes me wonder what is coming next.

    --
    My ism, it's full of beliefs.
  22. Re:Even more fake news by soc_cost_priv_gains · · Score: 2

    There are a few groups who take AGW into consideration such as insurance companies and the military.

  23. Ice shelf collapse by BlytheBowman · · Score: 2

    Let the Mad Max world begin! I have the chains and collars ready

  24. Re:Even more fake news by MightyMartian · · Score: 2

    If you have actual evidence of profiteering and dishonest dealing by climatologists, then by all means provide it. You're clearly making an accusation, so you must have actual evidence of this vast cabal of grant fraud.

    --
    The world's burning. Moped Jesus spotted on I50. Details at 11.
  25. There is no AGW cabal by Tenebrousedge · · Score: 5, Insightful

    "traditional" $100-$200 million? Traditional since when? Traditional since the 19th Century when CO2 was first recognized as a potential problem, or traditional since 1959 when it became clear that there was a global issue with rising CO2 levels? Or would that have been any time in the past two centuries when the fundamentals of atmospheric physics were being worked out?

    You're arguing against AGW, by using a political argument. If you want to argue that AGW is not a serious concern then you need to do it in the language of science, not allege some sort of cabal. Roy Spencer is still getting up and delivering contrarian screeds to Congress and being lead author on the sections of the IPCC report related to his specialty -- it's not like the opposing voices aren't being heard. It's that they're not persuasive in the face of the evidence. If you don't like what the science says, do better science. This is, really and truly, a meritocracy, where reproducible results are all that matter. We can prove it, because the consensus was *against* CO2-induced warming until the 1950s, and then everyone changed their mind and no one was fired. Because we didn't have jackasses like you trying to inject politics into a scientific topic by insisting that the entire field is comprised of avaricious liars. Honestly, this is just you being intellectually lazy. Go and look up the evidence for AGW. Go read about radiative transfer equations, the Stefan-Boltzmann law, the atmospheric window, carbon 14 ratios, and all the rest. When you do, come back and tell us what you think is wrong with *that*, not some irrelevant horseshit about some conspiracy of white-haired professors. The basics of AGW were worked out in 1896, and they have been supported since then by thousands and thousands of people working in cooperation around the globe since that time. We respect your right to disagree with the science; the whole point of science is to argue about models of reality. The rules of this game are mandatory and not up for debate: if you arguing against science with something other than empirical evidence, you are fighting reality itself, and you will lose. Now, do you have some novel observations on the nature of CO2 that you would like to share with us?

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    Those who advocate genocide deserve every protection afforded by law, and none afforded by common human decency.
    1. Re:There is no AGW cabal by Tenebrousedge · · Score: 5, Insightful

      Insults are also not scientific evidence, and you saying that something is so doesn't make it true. If it's not real, prove it to me, and tell me what's wrong with the science, even if that is, "something unexplained happens in step x and we need more research into y".

      I have a low tolerance for bullshit on this subject. I grew up in Alaska, and it is already ruined. It would be nice if there were any hope of putting things back to normal there, but unfortunately the science is unequivocal. So now you have burned down my home, lied about doing it, and insulted me for saying otherwise. I suppose that's only fair, but what are you going to do for an encore?

      --
      Those who advocate genocide deserve every protection afforded by law, and none afforded by common human decency.
  26. Re:Even more fake news by Tenebrousedge · · Score: 3, Insightful

    AGW is supported by evidence, your statements are supported by political conjecture. We don't have to ask scientists if AGW is correct. We can look at the science, which as it happens is over 100 years old and quite mature as a field. It's wonderful of you to call an entire academic discipline liars with just some rhetorical argument though. So did these climate researchers also go back in time and jog Tyndall's hand as he measured the thermoptic characteristics of atmospheric gases? Are we missing a carbon-dioxide-eating term in our atmospheric physics equations? Or is it that this whole "greenhouse effect" thing is a liberal myth (like the moon!)? And if we are this badly wrong about how the atmosphere works, why do the atmospheric physics laws work just fine to explain the temperatures on Jupiter and in the Solar atmosphere? And if you can't answer any of these questions, why should we listen to the opinion of someone who knows nothing about the subject?

    --
    Those who advocate genocide deserve every protection afforded by law, and none afforded by common human decency.
  27. Re:Finis by Tenebrousedge · · Score: 2

    The statement was that rural Alaska was beset by grinding poverty. As in, the thousands of communities only reachable by bush plane, although technically in Alaska the term is applied to all but the three largest cities (Anchorage, Fairbanks, Juneau). The population of Juneau is about 30,000. Fully half of the State's citizens live in the Greater Anchorage Area (ANC+Mat-Su), and the overwhelming majority of economic activity is concentrated in due proportion in these three major cities. The smaller Alaskan towns have with few exceptions (Dutch Harbor/Unalaska) very little economic activity, and typically this activity is seasonal in nature. Strangely enough, Wikipedia seems to have an article on the economies of various places in Alaska. I won't editorialize here, why don't you look at the numbers there and tell me what you see.

    And as for the 'homeland' word, I have to apologize if you don't like it. I learned about America from the Internet at a young age. We didn't have television, but we weren't too far out in the sticks to not have phone service. I would always look south and imagine a land of noise and shining lights far beyond the horizon, and it never really seemed like I could actually be a part of that polity. As an adult I've lived outside the country at various times (third world shitholes that had the advantage of being tropical. I mean, can you blame me?). I have a massively warped perspective on American culture. It's one of the reasons why I try to avoid political opinions: I don't know enough about how most people think to be able to tell them differently (and not that discussing politics on Slashdot is ever a good idea). You, in turn, have very little perspective on daily life in rural Alaska. I'm not clear on why you are insisting otherwise, or what it could possibly say about me.

    --
    Those who advocate genocide deserve every protection afforded by law, and none afforded by common human decency.