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2023 SkS Weekly Climate Change & Global Warming News Roundup #1

Posted on 7 January 2023 by John Hartz

A chronological listing of news and opinion articles posted on the Skeptical Science Facebook Page during the past week: Sun, Jan 1, 2023  thru Sat, Jan 7, 2023.

 Story of the Week 

Scientists Report a Dramatic Drop in the Extent of Antarctic Sea Ice 

Links between global warming and the decline of sea ice in the Southern Ocean are still unclear, but climate can’t be ruled out as a driver.

The new year started with the familiar refrain of climate extremes, as scientists with the National Snow and Ice Data Center reported Jan. 3 that the sea ice around Antarctica dropped to its lowest extent on record for early January.

“The current low sea ice extent … is extreme, and frankly we are working to understand it,” said Antarctica expert Ted Scambos, a senior research scientist with the Earth Science and Observation Center at the University of Colorado at Boulder. 

Scambos said the sea ice extent is about 270,000 square miles less than the previous low, set in 2018. That’s an area just a bit bigger than Texas, and the measurements reflect a persistent, strong trend toward lower-than-average Antarctic sea ice extent that started in 2016 and shows no signs of letting up, he added.

At this point, researchers don’t have a good explanation for the dramatic decline, and the links to global warming are still unclear. For now, he said, persistent wind patterns around Antarctica seem to be the main cause of this year’s rapid decline, while other scientists said climate warming can’t be ruled out as a contributing factor.

Click here to access the entire article as originally posted on the Inside Climate News website.

Scientists Report a Dramatic Drop in the Extent of Antarctic Sea Ice by Bob Berwyn, Climate, Inside Climate News, Jan 6, 2023

Links posted on Facebook

Sun, Jan 1, 2023

Mon, Jan 2, 2023

Tue, Jan 3, 2023

Wed, Jan 4, 2023

Thu, Jan 5, 2023

Fri, Jan 6, 2023

Sat, Jan 7, 2023

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Comments 1 to 3:

  1. Scientists Report a Dramatic Drop in Antarctic Sea Ice

    Decades ago I became overconfident that at least the Antarctic remained safe from melting. Somewhere I had read that the Antarctic would take a couple more centuries before the effects of the new climate change would begin to melt the Antarctic, but I misplaced my confidence. 


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    Moderator Response:

    [BL] The snipped link is the same as the link behind "Scientists Report..." It is not necessary to add it twice.

  2. The Antarctic sea ice area has behaved in a very different way in the last 10 years or so. You can see that from the 2022 annual average sea ice area graph which you can see at,1759.msg355482.html#msg355482


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    Moderator Response:

    [BL] Link activated.

    The web software here does not automatically create links. You can do this when posting a comment by selecting the "insert" tab, selecting the text you want to use for the link, and clicking on the icon that looks like a chain link. Add the URL in the dialog box.

  3. gerontocrat @2,

    I have a couple of graphs of the Antarctic SIE anomaly I keep updated (graphs 3a & 3b here, unfortunately not available for 'hot' linking) based on the JAXA daily data. Antarctic SIE year-on-year was pretty static until 2013-16 when it had an icier period, this followed by 2017-20 when it had a meltier period. Then mid-2021, the meltier times returned with the end-2022 and start-2023 suggesting interesting times ahead.

    One annual measure I keep tabs on is the number of days when all-time lows for time-of-year. Ranked by number of record days, it looks like this:-

    2017 … 107
    2022 ….. 78
    2016 ….. 65
    2019 ….. 59
    1986 ….. 20
    2018 ….. 11
    2002 ….. 11
    2023 ....... 7 (to 7th Jan)
    2001 ……. 7

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