Climate change Sea Ice Melt Glacia melt the developing science

Discussion in 'Earth Science' started by RainbowSingularity, Jun 8, 2019.

  1. RainbowSingularity Valued Senior Member

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  3. sculptor Valued Senior Member

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    The arctic cold outbreak of January 2019 will go down as the coldest in parts of the upper Midwest since the 1990s, shattering numerous daily records and even topping a few all-time cold records, while creating wind chills as cold as the 60s below zero.

    (NEWS: Impacts From the Cold Outbreak)


    Mount Carroll, Illinois, may have set a new all-time record low for the state of Illinois Thursday morning, Jan. 31, with a temperature of minus 38 degrees
    from
    https://weather.com/forecast/nation...vortex-midwest-arctic-air-coldest-two-decades
    ............................................
    1. January 30, 2019: Record-breaking cold swooped down from Canada, affecting the entire Midwest. Per the Des Moines Register, the capital city hit -20 degrees with wind chills near -40, making it the coldest Jan. 30 in the history of Des Moines. The all-time coldest day was Jan. 5, 1884, when they hit -30. Sadly, this cold weather did take at least 11 lives, one of which was a University of Iowa student.
    from
    http://www.iowastatedaily.com/news/...cle_f6e8a068-2aed-11e9-ba84-9b19c030a2e4.html
    ...........................................
    February 02, 2019
    By the numbers: Midwestern US endures ... all-time record lows broken
    Midwest extreme cold by the numbers:
    -77˚F
    Lowest AccuWeather RealFeel® Temperature, recorded at Thief River Falls, Minnesota, on Tuesday evening.
    -56˚F
    The lowest actual temperature recorded in Cotton, Minnesota, on Thursday morning.
    -38˚F
    Low temperature recorded at Mt. Carroll, Illinois, on Thursday morning. If deemed accurate, it would be the new Illinois state record low.
    8 hours
    Consecutive hours of RealFeel® Temperatures under 65 below zero F in Grand Forks, North Dakota, on Tuesday.
    -23˚F
    Record low in Chicago on Wednesday morning, the lowest since the mid-1980s.
    15 times
    That temperatures have been at or under 21 below zero F in Chicago since records began in the 1870s.
    All-time record lows broken on Thursday morning
    -33˚F
    Moline, Illinois (Previous record: 27 below zero from Jan. 16, 2009)
    -30˚F
    Cedar Rapids, Iowa (Previous record: 29 below zero from Jan. 15, 2009)
    -30˚F
    Rockford, Illinois (Previous record: 27 below zero from Jan. 10, 1982)
    from
    https://www.accuweather.com/en/weat...d-temperatures-lower-than-south-pole/70007296
     
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  5. sculptor Valued Senior Member

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    The arctic ocean's ice puts a cap on evaporation
    lose that cap and the evaporate can fall as snow on the land surrounding the arctic ocean
    the snow may accumulate faster than it can melt
    the accumulation may build glaciers

    This mechanism was proposed by Ewing and Donn 1956 theory of the causes of Ice Ages
    https://science.sciencemag.org/content/123/3207/1061
    https://link.springer.com/chapter/10.1007/978-1-935704-38-6_8
    and then
    Maureen Raymo et.al. found that sea level rose rapidly at end eemian---just before the recent period of glaciation started

    these 2 bits seem connected, but I have found no study combining the 2
     
    Last edited: Jun 8, 2019
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  7. iceaura Valued Senior Member

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    Recent article in Science made a point I had somehow overlooked: when the glaciers that flow from land into the sea speed up, as most have lately, the sea level rises immediately - the newly floating ice does not have to melt to boost sea levels.

    So the Thwaites glacier crossing its tipping point and breaking free at its grounding line (due to greenhouse warmed water moving in underneath it) will become bad news quite rapidly - long before it all melts.
     
    RainbowSingularity likes this.
  8. RainbowSingularity Valued Senior Member

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    3,809
    i recall falling over something slightly similar.

    musing on this
    with atmospheric Co2 low and increased sea level, this may push glacification.
    however.
    we need to see the data along side the Co2 levels
    low co2 large eruption on large melting glacial bridge/damn
    etc...
    we can conjure many potential concepts.

    what the antarctic scientists seem to describe is a regular pattern of melting and then freezing again.
    what has never happened before is human global warming via things like nuclear weapons tests
    massive coal burning
    massive phosphate dumping into the sea growing algae blooms(heating the sea)

    look at WWII when entire citys were set on fire
    look at recent asia with entire Forrest being burnt to the ground and the non stop deforestation.

    never before has the earth had soo little trees

    i think the accumulative effect of
    human heat production via citys factory pollution run off into the sea acidification of the sea
    added on top of
    massive 1st time in the history of the planet massive deforestation
    human Co2 production

    these will be far outweigh any mild swings of balanced tipping of scale back n forth between icing & de-icing.

    the exponential effect some have been mentioning.
    i have mentioned it several times.
    it seems logical and seems like it should be focussed on to attempt to establish some models of exponential factors to try and gauge things.

    my last comment was the suggested moot for example if global sea level rise became 2 meters in 10 years.
     
  9. RainbowSingularity Valued Senior Member

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  10. paddoboy Valued Senior Member

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  11. paddoboy Valued Senior Member

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    https://phys.org/news/2019-07-iceland-trees-razed-vikings.html

    "Before being colonised by the Vikings, Iceland was lush with forests but the fearsome warriors razed everything to the ground and the nation is now struggling to reforest the island"more at link.....
     
  12. RainbowSingularity Valued Senior Member

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    3,809
    phys.org ?
    Really ?
    creationist tabloid pop science web site says so...

    phys.org is tabloid newspaper science

    i have pointed(some years ago' i simply wont read any of their stuff anymore) out and written to phys.org several times how they are scientifically wrong and several articles were deliberately misleading.
    their response was they think it doesn't matter as they are a publication geared toward general knowledge not science and is more concerned with common opinion than technical facts.

    they are not concerned with scientific facts , just getting clicks in the office lunch room.
    They have been pedaling their spoon full of sugar sheople pop science click bait for years now, with a catchy name and prolific trend topic links.

    its a traveling vacuum cleaner sales shop
     
    Last edited: Jul 20, 2019
  13. RainbowSingularity Valued Senior Member

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    3,809
    looks amazing
    will have to buy the DVD
     
  14. paddoboy Valued Senior Member

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    Also on Netflix....Amazing it is! In every respect...the message, the photography, the unimaginable beauty, incredible.
     
  15. paddoboy Valued Senior Member

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    Some sensationalism as there is in most journalistic reports, but otherwise OK in my opinion, and of course in a great number of the articles, the actual paper/s are presented and/or linked to, as I generally do when I post one of their stories.
     
  16. RainbowSingularity Valued Senior Member

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    3,809




    boat full of tourists almost killed lol
    clapping seals clapping lol


    Danger Will Robinson Danger

    notice how the lady standing next to the man who is hit in the head with a piece of ice the size of a foot ball tells the other lady to back away and not help him.
    then bongo the clown comes around the corner with his chip packet in one hand and proceeds to help the stupid lady block access to the victim.

    clever monkeys
     
    Last edited: Jul 20, 2019
  17. RainbowSingularity Valued Senior Member

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    3,809
    https://www.bbc.com/news/world-latin-america-49052360
    https://en.wikipedia.org/wiki/Deforestation_of_the_Amazon_rainforest

     
    Last edited: Jul 20, 2019
  18. RainbowSingularity Valued Senior Member

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    3,809
  19. RainbowSingularity Valued Senior Member

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    i posted this video above.

    it occured to me as i was watching it again.
    when looking at the clock timer.
    the distance the ice is moving
    it must be going really fast.
    rough look appears to be the ice traveling around 60 to 70 kilometers per hour
    thats several entire mountains all traveling at 60kmph
    thats quite a lot of energy

     
  20. sculptor Valued Senior Member

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    Snow
    It's been snowing a lot more in/on antarctica---
     
  21. billvon Valued Senior Member

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    Yep. And meling is causing a loss of 250 billion tons a year. Overall, the net balance is a loss of 45 to 120 billion tons a year.
     
  22. sculptor Valued Senior Member

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    Consider that the Antarctic ice sheet weighs 26,500,000 gigatons.
    With an estimated loss of 45 to 120 gigatons/year---average 82.5
    If this average keeps up for another 321,212 years, we may yet see an ice free Antarctica
    (well, not "we", I'll be dead, and the species will likely have experienced another evolutionary leap)
    ..............
    however, the west Antarctic seems to be the most vulnerable, and may have collapsed during the last superinterglacial
    darned interesting
     
  23. billvon Valued Senior Member

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    16,272
    Yep. It would take a long time to lose all that ice. It would take a much shorter time, though, to lose Manhatttan, Miami and Bangladesh. (Well, probably not Manhattan. They will probably build a sea wall that we will all pay for. The right wing will complain bitterly about the expense while chanting "There's NO SUCH THING as climate change!")
     

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