Tech | February 03, 2012 | 52 comments

18 mile crack seen by NASA in Antarctic glacier

Image
JanforGore
Antarctica is so vast that the pictures give you no sense of scale. The pencil-thin line across the satellite image of Pine Island Glacier (above) is actually more than 18 miles long, 800 feet across in places, and 180 feet deep.

And it's growing. In the next few months, scientists expect the glacier to create an iceberg about 350 square miles in area. It will probably float northward, melting as it goes.

"Pine Island Glacier is losing ice very quickly, about six meters per year," said Michael Studinger of NASA's Goddard Space Flight Center in Maryland, which sent an expedition called Operation IceBridge to Antarctica in October in an old DC-8 jetliner, modified for scientific operations. It spotted the break in the ice. Earth-observing satellites have been watching it since.

"These things happen on a semi-regular basis in both the Arctic and Antarctic, but it's still a fairly large event," said John Sonntag, Instrument Team Lead for Operation IceBridge, in video recorded on the plane. "So we wanted to make sure we captured as much of that process as we could.

"A lot of times when you're in science, you don't get to capture the big stories as they happen, because you're not there at the right place at the right time," he said, "but this time we were."

To scientists, this is more than a vast spectacle. Both polar caps are losing ice, and researchers studying the world's climate say they want to understand the process.

More at the link
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52 comments // 18 mile crack seen by NASA in Antarctic glacier

  • JanforGore
    • +1
      JanforGore  
    • I really appreciate the way the link was fixed on the front page... by removing the entire reference to this news so no one could see it. I'm sure it was just a glitch....

    • 4 months ago
  • JanforGore
  • JanforGore
  • Tayllerand
  • tverdell
  • rosyjane
    • 0
      rosyjane  
    • created by hatred, nature that you evolved, which way up teh dawn will make ways to create a dominion of hope? you are old and that old means you need to show the new born that you hold... sacrificing the life of the old to gave a better life for the future...

    • 4 months ago
  • Milieu
    • +1
      Milieu  
    • The Kochs, the MacIver Institute, the Mercatus Center, and ALEC assure us that Global Warming is not true.

      Who you gonna believe--- a buncha snooty scientists, or "Bidness Men" who wanna be richer than God?

      ***************************************************************************
      Strangely enough, I do believe I'll take the Scientists, thank you.

    • 4 months ago
  • WalmartRamen
  • coolplanet
  • JanforGore
  • GRC54
  • coolplanet
    • +2
      coolplanet  
    • This is the Snowball Effect.
      The problem just keeps getting bigger every day we continue to spew more carbon and don't do a god damn thing to slow it down!
      Thank you for reminding us every day that we need to get off our asses and actually DO SOMETHING like plant a tree or use less oil and gas.

    • 4 months ago
  • Gravity_Man
    • 0
      Gravity_Man  
    • coolplanet:

      Well, if you figger how many people running the gov't are also proclaiming CHRISTIANS WANTING THE RAPTURE TO HURRY UP AND GIDDYAP that might go a ways toward explaining NOTHING BEING DONE.

      You're up against an Army of Do-gooders wanting something real bad to happen. Hmm. Bruce Campbell, Army of Darkness Necronomicon types?

    • 4 months ago
  • Milieu
  • Gravity_Man
  • Anonmaly
  • Gravity_Man
  • northernexpat
    • +2
      northernexpat  
    • I hope all the deniers have beach front property. When it is underwater because of all the glaciers breaking off and melting, don't come crying to me. You have already killed the planet where I live. It is 3c today in my community in the Arctic It's suppose to be winter not spring. But, pretty soon a cold snap will come and create havoc. Up, down, up, down, try living with that.

    • 4 months ago
  • chew_chew
    • +1
      chew_chew  
    • How long must Mother Nature continue to scream for help until someone in a position to affect necessary changes, hears the cries and begins with the changes, already.

    • 4 months ago
  • danitassin
    • +5
      danitassin  
    • The best thing we can do is encourage education. We need teach our children how live with the earth not in constant struggle with it. I always think of the most cliche saying ever, but it's true. Knowledge is Power.
      The fact that everyone is freaking out about the snow in Colorado, is a clear example of how ignorant people really are. That snow will turn into water that will flow down the mountains into Texas, which is in dire need of water right now. So it's a great thing that you're snowed in at Denver International. Not as much of a tragedy as the weather channel makes it out to be. Just sayin'.

    • 4 months ago
  • JanforGore
    • +3
      JanforGore  
    • danitassin:

      I agree about the snow providing the snows are then not so intense that it brings severe floods, which is actually what we are now seeing in other places around the world. That also is happening in the Oregon area where they got walloped and then temperatures quickly warmed while parts of Texas did get hit with torrential rains that flooded Austin while extreme drought continues. It appears in the US we are seeing extremes again regarding warmth and precipitation this winter. And both Europe and Japan have just recently suffered extreme snowstorms ( Japan had 10 ft fall in two days) causing deaths. We don't seem to have many events that are in moderation. There are more extremes and they are more frequent. The natural cycle (hydrologic particularly) is being pushed harder and faster by us and we are seeing changes coming faster than we can adapt or keep up with and that is also affecting other species, plants, water and the systems we need to live. So for sure knowledge is power and our children definitely will need that in order to survive in a future world.

    • 4 months ago
  • Truthitswhatsfordinner
  • kennymotown
  • JanforGore
    • +5
      JanforGore  
    • kennymotown:

      http://www.democracynow.org/blog/2011/6/29/book_excerpt_tropic_of_chaos_climate_...

      Thanks, I read that article and he is an excellent writer. Here is an excerpt from his book Tropic Of Chaos (Climate Change And The New Geography Of Violence.)
      ~~~
      "Read the first chapter of "Tropic of Chaos: Climate Change and the New Geography of Violence," by award-winning writer Christian Parenti, who was interviewed today on Democracy Now! In the book he explores how, from Africa to Asia, extreme weather brought on by global warming is unleashing cascades of unrest and violence.

      Excerpted with permission from Tropic of Chaos: Climate Change and the New Geography of Violence, by Christian Parenti. Available from Nation Books, a member of The Perseus Books Group. Copyright © 2011.

      C H A P T E R 1

      Who Killed Ekaru Loruman?

      What are the roots that clutch, what branches grow
      Out of this stony rubbish? Son of man,
      You cannot say, or guess, for you know only
      A heap of broken images, where the sun beats,
      And the dead tree gives no shelter, the cricket no relief,
      And the dry stone no sound of water.
      —T. S. ELIOT, The Waste Land

      EKARU LORUMAN lay beneath a flat-topped acacia tree, its latticework of branches casting a soft mesh of shade upon his body. He wore a silver earring and khaki shorts and lay on his side with his arm twisted awkwardly beneath him. The left side of Ekaru’s forehead was gone, blown away by the exit of a bullet. His blood formed a greasy, black slick on the desert floor. His sandals, shawl, and gun had been stolen.

      Ekaru had been a pastoralist from the Turkana tribe, who live in northwest Kenya, on the arid savannas of the Rift Valley. He had been killed the day before when a neighboring tribe, the Pokot, launched a massive cattle raid. Ekaru’s corpse lay here on the ground, exposed to the elements with goats and sheep browsing nearby, because the Turkana do not bury people killed in raids. They believe doing so is bad luck, that it will only invite more attacks. So they leave their dead to decompose where they fall. But these supernatural precautions will not hold the enemy at bay, for profound social and climatological forces drive them forth.

      The group of Turkana I was visiting had been pushed south by severe drought and were now grazing their herds at the edge of their traditional range, very close to their enemies, the Pokot. In the pastoralist corridor of East Africa, a basic pattern is clear: during times of drought, water and grazing become scarce, the herds fall ill, and many cattle die. To replenish stocks, young men raid their neighbors. The onset of anthropogenic climate change means Kenya is seeing rising temperatures and more frequent drought. Yet, overall it is actually receiving greater amounts of precipitation. The problem is, the rain now arrives erratically, in sudden violent bursts, all at once rather than gradually over a season. This means eroding floods, followed by drought. The clockwork rains, upon which Kenyan agriculture and society depends, are increasingly out of sync.

      Climate War Forensics

      Why did Ekaru Loruman die? What forces compelled his murder? Ekaru, who had been about thirty-five years old—age among the Turkana is usually just estimated—had three wives, eight children, and about fifty head of cattle. He had been an important and powerful man in his community: a warrior in his prime, old enough to have plenty of experience and wisdom but still young and strong enough to run and fight for days on little food or water. And now he was dead.

      We could say tradition killed Ekaru, the age-old tradition of “stock theft,” cattle raiding among the Nilotic tribes of East Africa. Or we could say he was murdered by a specific man, a Pokot from the Karasuk. Or that Ekaru was killed by the drought. When the drought gets bad, the raiding picks up.

      Or perhaps Ekaru was killed by forces yet larger, forces transcending the specifics of this regional drought, this raid, this geography, and the Nilotic cattle cultures. To my mind, while walking through the desert among the Turkana warriors scanning the Karasuk hills for the Pokot war party, it seemed clear that Ekaru’s death was caused by the most colossal set of events in human history: the catastrophic convergence of poverty, violence, and climate change. This book is an attempt to understand the death of Ekaru Loruman, and so many others like him, through the lens of this catastrophic convergence.

      The Facts

      The scientific consensus about the status of the climate takes institutional form in the Intergovernmental Panel on Climate Change (IPCC). The IPCC does not conduct independent research but is, instead, a government and UN-supported international clearinghouse. It collects and summarizes all published scientific literature on climatology and related issues in biology, hydrology, oceanography, forests, glaciology, and other disciplines so that governments may respond to climate issues based on fully vetted
      research.

      The IPCC has been attacked by climate-change denialists as alarmist and wrong because of several minor errors in its 2007 Fourth Assessment Report. Addressing these did not, however, change the report’s overall conclusions. In fact, because the IPCC operates on the basis of consensus, its conclusions are quite conservative, and its reports lag years behind the latest scientific developments. The IPCC represents the lowest common denominator of fully accepted conclusions from the scientific mainstream.

      The IPCC has concluded that civilization’s dependence on burning fossil fuels has boosted atmospheric concentrations of carbon dioxide (CO2) from around 280 parts per million (ppm) before the Industrial Revolution to 390 ppm today. Analyses of ancient ice cores show 390 ppm to be the highest atmospheric concentration of CO2 during the last 10,000 years.

      Atmospheric CO2 functions like the glass in a greenhouse, allowing the sun’s heat in but preventing much of it from radiating back out to space. We need atmospheric CO2—without it, Earth would be an ice-cold, lifeless rock. However, over the last 150 years we have been loading the sky with far too much CO2, and the planet is heating up.

      As the Pew Center on Global Climate Change explains, “The Earth’s average surface temperature has increased by 1.4°F (0.8°C) since the early years of the 20th century. The 11 warmest years on record (since 1850) have all occurred in the past 13 years. The five warmest years to date are 2005, 1998, 2002, 2003, 2007.”

      Less than 1°C warmer over a hundred years may not sound like much, but scientists believe it is enough to begin disrupting the climate system’s equilibrium. The negative-feedback loops that keep Earth’s climate stable are increasingly giving way to destabilizing positive-feedback loops, in which departures from the norm build on themselves instead of diminishing over time. The Greenland and Antarctic ice sheets—which reflect large amounts of solar radiation back into space and regulate the flow of ocean currents—are melting at rates much faster than climate scientists had predicted even a few years ago. The loss of reflective ice means more solar radiation is absorbed, and the world heats faster. Polar ice is melting rapidly, disgorging billions of gallons of fresh water, which alters the chemistry and currents of the oceans and, adding volume, threatens to raise sea levels by up to a meter over this century."

    • 4 months ago
  • kennymotown
    • +2
      kennymotown  
    • JanforGore:

      Now just remember this Jan, I heard this guy interviewed on my local progressive station.
      Some people are making it clear to those of us listening! :) That was a Democratic station, mind you! Senator Imhoff was nowhere to be seen.

    • 4 months ago
  • JanforGore
  • kennymotown
  • Truthitswhatsfordinner
  • circlesquared
  • danitassin
    • +2
      danitassin  
    • You know alot of people still think that we're saying that the whole planet is going to dry up in the next year. Of course that's not how its happening, it will take much longer, so long, that we will probably always have skeptics just because people only have a lifespan of 80 years and cant even fathom anything bigger than that. My grandmother tells stories of how she cant believe how high the water has risen since she was little. (I live in charleston, sc) yet she still thinks climate change is a hoax to stir people up, just because she doesn't understand it.

    • 4 months ago
  • JanforGore
    • +2
      JanforGore  
    • danitassin:

      That is true. So many do not understand the connection between this and how it effects them and so many do not see it affecting them now so they don't feel the need to worry about it. I guess it really does come down to the water practically being over your head (figuratively and or literally depending.) I'm trying to think of exactly what event would really do it. Worldwide famine? Developed countries going to war over water? Mass migrations causing war? It surely is frustrating to be human some days.

    • 4 months ago
  • haberzet
    • +1
      haberzet  
    • danitassin:

      The whole climate change denying is just an expression of pure fear among wide parts of society. Fear to have to change. Fear that life will not be the same anymore and fear of what the new condition we will live under will bring. The easiest way of coping with that fear, is to deny that it is actually happening. In the end the main problem, when it comes to climate change debates, is the low level of education. To many people are not capable of understanding simple facts. It is especially frightening to me when a see the young generation. Educational standards are eroding! Many kids which start college are not even capable of solving the simplest mathematical problems. But teachers are branded as overpaid enemy #1 of society. I am afraid as long as it is more important to force public schools to have bible study courses nothing will change.

    • 4 months ago
  • JanforGore
  • kennymotown
    • +5
      kennymotown  
    • May I suggest a whole lot of super glue! All kidding aside, this is yet another warning from mother nature. When will we ever get our act together on global warming, it's at the point of pure insanity. But yet another 50 million idiots will vote Republican this time around AGAIN! And another 30 or 40 million will not vote. America is number one in polluting the Earth with China gaining ground, Capitalism will eventually kill us all.

    • 4 months ago
  • JanforGore
  • kennymotown
  • JanforGore
    • +4
      JanforGore  
    • kennymotown:

      I don't listen to RW BS talk radio and would never turn it on to up their ratings, but yes, they do spread constant horse manure... but the other side isn't talking at all which only gives them aid in their quest to misinform. At least some scientists are startting to speak out. But even here how many times has this really been discussed on any of the current shows here? This entire election not one serious debate question from the media or even Obama making it part of his campaign. We will never get to a point of getting truly serious about it the longer this government continues to push fracking and oil drilling in some attempt to keep votes and not piss everyone off.

    • 4 months ago
  • percipi224
  • kennymotown
    • +3
      kennymotown  
    • JanforGore:

      I don't know about that, Bill Nye the science guy was on Alan Coombs I think it was last night and it started some real interesting calls. Mostly dumb asses from the right, but they got corrected real fast.

    • 4 months ago
  • kennymotown
  • JanforGore
    • +5
      JanforGore  
    • kennymotown:

      Well sure, he is a scientist and I did say scientists are speaking out which is good. But where are the radio stations that discuss the reality of this? There should be a station then that delivers up to the minute news on climate conditions around the globe and explains the science to people to counter the lies.There should be ads on Sunday morning shows to counter the barage of Bs ads about natural gas and tarsands to tell people they do have affordable cleaner energy options. We don't see that and it gives the liars an advantage and that is something we can't afford now.

    • 4 months ago
  • kennymotown
    • +2
      kennymotown  
    • JanforGore:

      It is a very sad situation indeed, and it appears more catastrophic weather events are the only hope to change public opinion. It is what it is, but at least we have you here at current to keep us informed. :)

    • 4 months ago
  • Truthitswhatsfordinner
  • JanforGore
  • JanforGore
    • +2
      JanforGore  
    • Some including myself have asked what is hoped to be accomplished from this visit. I know that oneoutcome hoped for is that people who think climate change is some distant phenomenon tha thas no effect on their lives come to understand quickly that what happens in these places does indeed have an effect on their lives.It seems only when that revelation occurs do people seek to take action.

      The On Thin Ice journey that Al Gore has planned through Climate Reality will hope to show this corrolation through glacier melt in Antarctica to preparation for rising sea levels in Brooklyn NY, Ecuador, and other places around the world that are being affected by these events. I don't hope they will jar this ignorant oil bought government into sanity, but at the very least more will come to know that they are a part in what is happening and hopefully wil then see they are also part of the solution. This is important now because what we are seeing taking place globally is already changing the relationship to our only home for many.

    • 4 months ago
  • MrMetalloidMan
  • JanforGore
  • Wyley_Wombat
    • +1
      Wyley_Wombat  
    • JanforGore:

      This happens repeatedly. A few years back just before the earthquake in L'Aquila Italy, seismologists put out a warning that there was a lot of subsurface activity, conducive to manifesting as a substantial earthquake. As expected they were ignored and the local population was "shocked" when the quake occurred. Last year, the government was conducting an investigation to learn why the scientists did not give an adequate warning. You can't make this shit up! The same sort of thing will happen when the sea starts to rise.

    • 4 months ago
  • Truthitswhatsfordinner
  • JanforGore
  • JanforGore
  • JanforGore
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