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West Antarctic Ice Melt Is Now ‘Unstoppable,’ NASA Report says

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  • West Antarctic Ice Melt Is Now ‘Unstoppable,’ NASA Report says

    Glaciers in western Antarctica are melting at an “unstoppable” rate that could cause worldwide sea levels to rise far quicker than previously thought, two groups of scientists said Monday.
    Teams of researchers from NASA and the University of California said the ice sheets will continue to retreat for decades or even centuries to come, regardless of any human effort to reduce carbon emissions a primary cause of climate change ’ though warming temperatures could accelerate the process.
    The new data could mean that the Intergovernmental Panel on Climate Change’s (IPCC) prediction last month of a three-foot sea level rise by 2100 may have to be increased by as much as four feet, the studies said.

    The reports represent the crossing of a “critical threshold” in understanding Antarctic ice sheets, said researchers at NASA and the University of California at Irvine who were behind the studies, scheduled for publication this week in the journals Science and Geophysical Letters.
    Conclusions in the reports are based on 40 years of observation of the rapidly melting Amundsen Sea area of West Antarctica. Six glaciers in the region have entered an “unstoppable” retreat that has “passed the point of no return,” the researchers said.
    http://america.aljazeera.com/article...-ice-melt.html

  • #2
    This was old news in 1999... http://wattsupwiththat.com/2014/05/1...eet-from-1999/

    The "irreversible" retreat of the WAIS grounding line (AKA collapse) began in the Early Holocene...
    Science 8 October 1999:

    Vol. 286 no. 5438 pp. 280-283

    DOI: 10.1126/science.286.5438.280
    Report
    Past and Future Grounding-Line Retreat of the West Antarctic Ice Sheet

    Abstract

    The history of deglaciation of the West Antarctic Ice Sheet (WAIS) gives clues about its future. Southward grounding-line migration was dated past three locations in the Ross Sea Embayment. Results indicate that most recession occurred during the middle to late Holocene in the absence of substantial sea level or climate forcing. Current grounding-line retreat may reflect ongoing ice recession that has been under way since the early Holocene. If so, the WAIS could continue to retreat even in the absence of further external forcing.

    […]

    http://m.sciencemag.org/content/286/5438/280.full
    Last edited by The Doctor; 30 Dec 15, 19:41.
    Watts Up With That? | The world's most viewed site on global warming and climate change.

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    • #3
      Has nothing to do with the "hot rock" beneath the surface, of course ...

      The geography of Antarctica's underside

      http://phys.org/news/2015-12-geograp...underside.html

      Planetary scientists would be thrilled if they could peel the Earth like an orange and look at what lies beneath the thin crust. We live on the planet's cold surface, but the Earth is a solid body and the surface is continually deformed, split, wrinkled and ruptured by the roiling of warmer layers beneath it.

      The contrast between the surface and the depth is nowhere starker—or more important—than in Antarctica. What is causing the mysterious line of volcanoes that emerge from the ice sheet there, and what does it mean for the future of the ice?

      Read more at: http://phys.org/news/2015-12-geograp...rside.html#jCp
      TANSTAAFL = There Ain't No Such Thing As A Free Lunch
      “War is merely the continuation of politics by other means” - von Clausewitz
      Present Current Events are the Future's History

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      • #4
        Originally posted by Mountain Man View Post
        West Antarctic Ice Melt Is Now ‘Unstoppable,’ NASA Report says
        http://america.aljazeera.com/article...-ice-melt.html
        I could find no reference to such a report, but I did find this on the NASA web site:

        Oct. 7, 2014
        Antarctic Sea Ice Reaches New Record Maximum

        "On Sept. 19 this year, for the first time ever since 1979, Antarctic sea ice extent exceeded 7.72 million square miles (20 million square kilometers), according to the National Snow and Ice Data Center."
        https://www.nasa.gov/content/goddard...record-maximum

        Of course, that is old news. We all know that in the late 1970's climatologists predicted the coming of the next Ice Age...

        However, NASA doesn't stop taking data:

        Oct. 30, 2015
        NASA Study: Mass Gains of Antarctic Ice Sheet Greater than Losses


        “The good news is that Antarctica is not currently contributing to sea level rise, but is taking 0.23 millimeters per year away,” Zwally said. “But this is also bad news. If the 0.27 millimeters per year of sea level rise attributed to Antarctica in the IPCC report is not really coming from Antarctica, there must be some other contribution to sea level rise that is not accounted for.”
        https://www.nasa.gov/feature/goddard...er-than-losses

        It's good to ignore reality as much as possible because it makes one "question" the "truth".

        Note: NASA is run by brilliant scientists and engineers. The IPCC is a political organization...
        Battles are dangerous affairs... Wang Hsi

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        • #5
          ^ Heretic!

          You will be burned at the stake by the gorebot blind follower legions of ACC/AGW!
          TANSTAAFL = There Ain't No Such Thing As A Free Lunch
          “War is merely the continuation of politics by other means” - von Clausewitz
          Present Current Events are the Future's History

          Comment


          • #6
            Good. If it's unstoppable then maybe they can stop crying about it all the time. I mean that ship has sailed right? So let's forget "global warming" and find some other silly imaginary thing to get hysterical about. Maybe we can do it without trying to cripple economies this time.
            "Artillery lends dignity to what might otherwise be a vulgar brawl." - Frederick the Great

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            • #7
              Originally posted by frisco17 View Post
              Good. If it's unstoppable then maybe they can stop crying about it all the time. I mean that ship has sailed right? So let's forget "global warming" and find some other silly imaginary thing to get hysterical about. Maybe we can do it without trying to cripple economies this time.
              Or maybe they can get back to fixing the hole in the ozone layer since that never closed up despite their predictions...

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              • #8
                On the day you'll be swimming in your living room , you'll keep saying that's the fault of the upstairs neighbour's bath tube
                That rug really tied the room together

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                • #9
                  Originally posted by frisco17 View Post
                  Good. If it's unstoppable then maybe they can stop crying about it all the time. I mean that ship has sailed right? So let's forget "global warming" and find some other silly imaginary thing to get hysterical about. Maybe we can do it without trying to cripple economies this time.
                  Exactly.
                  Any man can hold his place when the bands play and women throw flowers; it is when the enemy presses close and metal shears through the ranks that one can acertain which are soldiers, and which are not.

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                  • #10
                    Originally posted by frisco17 View Post
                    Good. If it's unstoppable then maybe they can stop crying about it all the time. I mean that ship has sailed right? So let's forget "global warming" and find some other silly imaginary thing to get hysterical about. Maybe we can do it without trying to cripple economies this time.
                    If it's unstoppable, then it is not imaginary.

                    However, it appears all is not yet lost if man is sensible. Given that China, India and the former Soviet states appear to be unable/unwilling to cut pollution, we're screwed.
                    How to Talk to a Climate Skeptic: http://grist.org/series/skeptics/
                    Global Warming & Climate Change Myths: https://www.skepticalscience.com/argument.php

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                    • #11
                      Originally posted by Nick the Noodle View Post
                      If it's unstoppable, then it is not imaginary.

                      However, it appears all is not yet lost if man is sensible. Given that China, India and the former Soviet states appear to be unable/unwilling to cut pollution, we're screwed.
                      Time to party, then!

                      He who dies with the largest carbon footprint wins!
                      Any man can hold his place when the bands play and women throw flowers; it is when the enemy presses close and metal shears through the ranks that one can acertain which are soldiers, and which are not.

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                      • #12
                        The oceans rising several meters could be a good thing. It'd inundate places like Washington DC, New York City, and San Francisco... What a win that would be!

                        Comment


                        • #13
                          Originally posted by Pirate-Drakk View Post
                          Note: NASA is run by brilliant scientists and engineers. The IPCC is a political organization...
                          Then ignore the IPCC and just read what NASA posts .

                          http://climate.nasa.gov/evidence/

                          However, your brilliant scientists agree with the IPCC.
                          Scientific evidence for warming of the climate system is unequivocal.
                          Further, the IPCC is made up of individuals 'sponsored' by governments, not political parties per se. Government sanctioned members make up the IPCC, regardless of which party is in power in that country, left or right. There is a distinction.
                          How to Talk to a Climate Skeptic: http://grist.org/series/skeptics/
                          Global Warming & Climate Change Myths: https://www.skepticalscience.com/argument.php

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                          • #14
                            Originally posted by T. A. Gardner View Post
                            The oceans rising several meters could be a good thing. It'd inundate places like Washington DC, New York City, and San Francisco... What a win that would be!
                            The news just gets better and better...
                            Any man can hold his place when the bands play and women throw flowers; it is when the enemy presses close and metal shears through the ranks that one can acertain which are soldiers, and which are not.

                            Comment


                            • #15
                              Originally posted by Pirate-Drakk View Post
                              [...]

                              Note: NASA is run by brilliant scientists and engineers. The IPCC is a political organization...
                              NASA is a political organization that hires a lot of "brilliant scientists and engineers." NASA and NOAA are run by bureaucrats.
                              Watts Up With That? | The world's most viewed site on global warming and climate change.

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