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#antarctic — Public Fediverse posts

Live and recent posts from across the Fediverse tagged #antarctic, aggregated by home.social.

  1. #Antarctic sea ice is nearing its annual maximum extent (austral winter). This year will not be setting any new records, though there are plenty of regional extremes as shown in August's anomaly pattern.

    + Concentration means the fraction of ice in an area
    + Graphic from zacklabe.com/antarctic-sea-ice

  2. #Antarctic sea ice is nearing its annual maximum extent (austral winter). This year will not be setting any new records, though there are plenty of regional extremes as shown in August's anomaly pattern.

    + Concentration means the fraction of ice in an area
    + Graphic from zacklabe.com/antarctic-sea-ice

  3. #Antarctic sea ice is nearing its annual maximum extent (austral winter). This year will not be setting any new records, though there are plenty of regional extremes as shown in August's anomaly pattern.

    + Concentration means the fraction of ice in an area
    + Graphic from zacklabe.com/antarctic-sea-ice

  4. #Antarctic sea ice is nearing its annual maximum extent (austral winter). This year will not be setting any new records, though there are plenty of regional extremes as shown in August's anomaly pattern.

    + Concentration means the fraction of ice in an area
    + Graphic from zacklabe.com/antarctic-sea-ice

  5. #Antarctic sea ice is nearing its annual maximum extent (austral winter). This year will not be setting any new records, though there are plenty of regional extremes as shown in August's anomaly pattern.

    + Concentration means the fraction of ice in an area
    + Graphic from zacklabe.com/antarctic-sea-ice

  6. In August 2026, the #SeaIce global extent was 7.2% below 1991-2020 mean. Since the beginning of records (1978):
    - #Arctic, 12th lowest monthly mean, with 9.1% less extent than normal (-617,526km²)
    - #Antarctic, 4th lowest monthly mean, with 6.5% less exent than normal (1,178,424km²)

    for more: osi-saf.eumetsat.int/sea-ice-i

  7. In August 2026, the #SeaIce global extent was 7.2% below 1991-2020 mean. Since the beginning of records (1978):
    - #Arctic, 12th lowest monthly mean, with 9.1% less extent than normal (-617,526km²)
    - #Antarctic, 4th lowest monthly mean, with 6.5% less exent than normal (1,178,424km²)

    for more: osi-saf.eumetsat.int/sea-ice-i

  8. In August 2026, the #SeaIce global extent was 7.2% below 1991-2020 mean. Since the beginning of records (1978):
    - #Arctic, 12th lowest monthly mean, with 9.1% less extent than normal (-617,526km²)
    - #Antarctic, 4th lowest monthly mean, with 6.5% less exent than normal (1,178,424km²)

    for more: osi-saf.eumetsat.int/sea-ice-i

  9. In August 2026, the #SeaIce global extent was 7.2% below 1991-2020 mean. Since the beginning of records (1978):
    - #Arctic, 12th lowest monthly mean, with 9.1% less extent than normal (-617,526km²)
    - #Antarctic, 4th lowest monthly mean, with 6.5% less exent than normal (1,178,424km²)

    for more: osi-saf.eumetsat.int/sea-ice-i

  10. In August 2026, the #SeaIce global extent was 7.2% below 1991-2020 mean. Since the beginning of records (1978):
    - #Arctic, 12th lowest monthly mean, with 9.1% less extent than normal (-617,526km²)
    - #Antarctic, 4th lowest monthly mean, with 6.5% less exent than normal (1,178,424km²)

    for more: osi-saf.eumetsat.int/sea-ice-i

  11. How #Tropical #Trees Became #Chemists in a #Battle for #Survival : Medium

    #Continental breakup–driven uplift instigated East #Antarctic #IceSheet formation : Science

    #Ocean #Floor witnessed splitting apart for the first time — releasing #Lava : Nature

    Latest #KnowledgeLinks

    knowledgezone.co.in/resources/

  12. #Antarctic #glacier #Thwaites #DoomsdayGlacier #SeaLevelRise #ClimateChange

    Goldberg et al. 09 March 2026 Geophys Res Lett 53:e2025GL118823

    Recent observations of Thwaites Glacier, West Antarctica are consistent with high rates of loss in next 50 years

    doi.org/10.1029/2025GL118823

  13. 💁🏻‍♀️ TIL: 🧵🌐 The hairy ball #theorem says you can’t comb a #sphere smooth without a cowlick somewhere.

    The same rule explains why #Earth always has a #cyclone spinning, why #fusion reactors use #doughnut shapes, and why omnidirectional antennas can’t exist. #Wind patterns over the #Arctic and #Antarctic circles illustrate the proof.

    👉 scientificamerican.com/article

    #topology #math #weather #hurricane #nuclearfusion #tokamak #plasma #science #hair

  14. 'Poised to disintegrate': Antarctica's '#DoomsdayGlacier' is set to lose its #IceShelf this year

    #WestAntarctica's "Doomsday Glacier" is on the brink of losing its ice shelf, further compromising the already melting ice mass and threatening to unleash devastating sea-level rises.

    By Patrick Pester

    "A vital ice shelf is about to break away from Antarctica's "Doomsday Glacier," further destabilizing one of the world's largest and most vulnerable glaciers.

    The #ThwaitesGlacier is nicknamed the "Doomsday Glacier" because its collapse would send so much ice into the Southern Ocean that #GlobalSeaLevels would rise by 2.1 feet (65 centimeters or 26 inches), flooding coastal communities worldwide. This collapse could take centuries, but there is an imminent threat to Thwaites' eastern ice shelf, which will likely accelerate the glacier's demise.

    "Researchers say that satellite images reveal that the Thwaites eastern ice shelf is about to detach from the glacier, New Scientist reported last week. While the glacier sits on land, the ice shelf is a floating body of ice that is attached to the glacier's mouth. Researchers still have a lot to learn about the glacier, but this shelf acts as a buttress, restraining the flow of ice from the glacier into the sea."

    [...]

    "Thwaites Glacier's slow collapse is part of a wider concern among scientists for the future of the West #Antarctic ice sheet. Thwaites is a key pillar of the ice sheet, protecting other ice from slipping into the ocean. If the whole ice sheet were to go, sea levels would rise by 10.8 feet (3.3 m), according to the British Antarctic Survey. The collapse of ice sheets like this one are considered tipping points, or 'points of no return,' in the fight against climate change — meaning that once they are crossed, they bring about permanent changes that cannot be reversed for many thousands of years."

    livescience.com/planet-earth/a

    #ClimateChange #SeaLevelRise #Thwaites #ClimateCatastrophe

  15. Warm water melts ‘#DoomsdayGlacier’ half a mile every year, finds study
    #Thwaites is said to be the most unstable place in the #Antarctic and contains the equivalent of 60 centimeters of #sealevelrise
    Warm, high-pressure #seawater causing significant melting under Thwaites #Glacier in #Antarctica. "There are places where the water is almost at the pressure of the overlying ice, so just a little more pressure is needed to push up the ice," said lead author Eric Rignot, PhD
    interestingengineering.com/sci

  16. #ClimateCatastrophe #Glaciers #SeaLevelRise #Antarctica

    (3/n)

    ...not all the #ice will return.👈

    “The impacts of #Antarctic #SeaIce staying low for over twenty years would be profound, including on local and global weather,” #LouiseSime, a co-author on the #BAS [#BritishAntarcticSurvey] study, said in a statement."

    "👉The #ThwaitesGlacier in #WestAntarctica — nicknamed the “#DoomsdayGlacier” because its collapse could cause catastrophic sea level rise👈 — is ...

  17. 😱 #Climate #tippingpoints are nearer than you think – new report warns of catastrophic risk

    "at today’s global warming of 1.2°C, the widespread loss of warm water coral reefs is already becoming likely, while tipping in another four vital climate systems is possible. These are #Greenland and West #Antarctic ice sheet collapse, North Atlantic circulation collapse, and widespread localised thaw of #permafrost."

    #climateemergency #actonclimate #ActOnClimateNow

    theconversation.com/climate-ti

  18. For this day-of-year, #Arctic - and #Global #seaice extent comes out as the third lowest on record. #Antarctic #extent comes out as the fourth lowest.

    source: #OSISAF SII-v2.1

  19. #Antarctic #seaice also sneaking into 2023 on a record-low #extent value for this time of the year:
    1. 2023-01-02 with 5.3 mill. km², followed by
    2. 2019-01-02 with 5.6 mill. km²,
    3. 2017-01-02 with 5.8 mill. km²

    Source: #OSISAF