Study Confirms Antarctic Sea Ice Expanding…Due To Climate Change, British Antarctic Survey Scientists Claim

What follows below is a press release from the British Antarctic Survey, read it here.

Photo: British Antarctic Survey

You’ll note as you read the press release, the science that applies at the South Pole mysteriously disappears at the North Pole. Winds are causing the the sea ice expansion down south, scientists claim, but of course they couldn’t possibly cause shrinkage up north.

I’ve added some emphasis to some of the text below.


Press Release – Why Antarctic sea ice cover has increased under the effects of climate change

The first direct evidence that marked changes to Antarctic sea ice drift have occurred over the last 20 years, in response to changing winds, is published this week in the journal Nature Geoscience. Scientists from NERC’s British Antarctic Survey (BAS) and NASA’s Jet Propulsion Laboratory (JPL), Pasadena California explain why, unlike the dramatic losses reported in the Arctic, the Antarctic sea ice cover has increased under the effects of climate change.

Maps created by JPL using over 5 million individual daily ice motion measurements captured over a period of 19 years by four US Defense Meteorological satellites show, for the first time, the long-term changes in sea ice drift around Antarctica.

Lead author, Dr Paul Holland of BAS says:

‘Until now these changes in ice drift were only speculated upon, using computer models of Antarctic winds. This study of direct satellite observations shows the complexity of climate change. The total Antarctic sea-ice cover is increasing slowly, but individual regions are actually experiencing much larger gains and losses that are almost offsetting each other overall. We now know that these regional changes are caused by changes in the winds, which in turn affect the ice cover through changes in both ice drift and air temperature. The changes in ice drift also suggest large changes in the ocean surrounding Antarctica, which is very sensitive to the cold and salty water produced by sea-ice growth.

Sea ice is constantly on the move; around Antarctica the ice is blown away from the continent by strong northward winds. Since 1992 this ice drift has changed. In some areas the export of ice away from Antarctica has doubled, while in others it has decreased significantly.’

Sea ice plays a key role in the global environment — reflecting heat from the sun and providing a habitat for marine life. At both poles sea ice cover is at its minimum during late summer. However, during the winter freeze in Antarctica this ice cover expands to an area roughly twice the size of Europe. Ranging in thickness from less than a metre to several metres, the ice insulates the warm ocean from the frigid atmosphere above.

The new research also helps explain why observed changes in the amount of sea-ice cover are so different in the two Polar Regions. The Arctic has experienced dramatic ice losses in recent decades while the overall ice extent in the Antarctic has increased slightly. However, this small Antarctic increase is actually the result of much larger regional increases and decreases, which are now shown to be caused by wind-driven changes. In places, increased northward winds have caused the sea-ice cover to expand outwards from Antarctica. The Arctic Ocean is surrounded by land, so changed winds cannot cause Arctic ice to expand in the same way.

Dr Ron Kwok, JPL says,

‘The Antarctic sea ice cover interacts with the global climate system very differently than that of the Arctic, and these results highlight the sensitivity of the Antarctic ice coverage to changes in the strength of the winds around the continent.’

There has been contrasting climate change observed across the Antarctic in recent decades. The Antarctic Peninsula has warmed as much as anywhere in the Southern Hemisphere, while East Antarctica has shown little change or even a small cooling around the coast. The new research improves understanding of present and future climate change. It is important to distinguish between the Antarctic Ice Sheet — glacial ice — which is losing volume, and Antarctic sea ice — frozen seawater — which is expanding.

This research was funded by the Natural Environment Research Council (NERC) and National Aeronautics and Space Administration (NASA).

While expansions down south are caused by “winds”, shrinkage up north couldn’t have anything to do with “winds”. Up there, it’s all man-made.


9 responses to “Study Confirms Antarctic Sea Ice Expanding…Due To Climate Change, British Antarctic Survey Scientists Claim”

  1. mwhite

    This seems quite comman in the world of CAGW, When your orriginal prediction fails look out the window to see what is actualy happening and rewrite history.

  2. Graeme No.3

    Let me see if I’ve got that right.

    They didn’t have any measurements of ice drift before, but now they have so it worse than before. Further, any changes can only be the result of climate change. Of course it is, unless it is just normal behaviour not picked up because of a lack of previous measurements.

    What do they mean by climate change anyway? Do they mean that global warming due to rising CO2 has caused more ice to form? Or do they mean that it is quite natural climate change as has occurred many times before?

    It has been said that most press releases are worth the paper they are written on, but it this case probably not that much.

  3. Neill

    Silly skeptics, everyone knows wind doesn’t blow in the Arctic.

  4. DirkH

    Bosch leaves Desertec consortium.
    (found somehere on ftd or Handelsblatt… lost it. Anyway. Siemens is already out, now Bosch.)

    1. Bernd Felsche

      Somebody at Bosch who still knows how to use a slide rule might have checked the maths.

      1. Bernd Felsche

        Reading the article, somebody read the balance sheet and the pending orders.

        Got to love the term “Focusing resources on what is important”. Perhaps if they’d not lost sight of the ball, they wouldn’t have been making energy to expensive to make stuff in Germany, cutting off their customer base.

        Head of the Supervisory Board of Volkswagen, Ferdinand Piëch said “Germany risks losing industry sectors such as foundries and metals in the medium term due to high energy prices. … We have already noticed at Volkswagen that prices are forcing us to source parts from abroad.”

        As Marx said: “Time wounds all heels”.
        Groucho Marx.

  5. DirkH

    Insane, broken German energy market makes E.ON stock collapse. (They own several of the German nukes; at least one of them is still running)

    1. Bernd Felsche

      Looks like the “Energieabwende” is working.

      Big drop in value in 2008; coinciding(?) with substantial EEG surcharges on conventional energy.

  6. Martin Brumby

    Another Kwok of shit from NASA’s JPL?

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