Sea Levels Could Rise Even More Than Feared As Antarctic Ice Sheets Melt

Discussion in 'Higher Learning' started by BK The Great, May 3, 2021.

  1. BK The Great

    BK The Great Veteran

    Joined:
    Nov 21, 2015
    Messages:
    33,882
    Daps Received:
    88,090
    Reppin:
    BK NY
    Reputation:
    2,400
    Coli Cash:
    $100500.00

    The effect of Antarctic ice loss from global warming will lead to sea level rise 30% higher than estimated by previous studies, a team at Harvard University has found.

    The collapse of the West Antarctic Ice Sheet, the researchers say, will add a full meter of sea level rise to the earlier forecast level of 3.2 meters over a 1,000 year period.


    But the researchers pointed out that while some people might dismiss such a long-term estimate out of hand, the additional sea-level rise would also have short-term consequences for communities globally.

    The research, published today in Science Advances, looks at a phenomenon known as a water expulsion mechanism, which is when the bedrock that an ice sheet sits on shifts upward as the weight of the ice decreases. “The bedrock sits below sea level so when it lifts, it pushes water from the surrounding area into the ocean, adding to global sea level rise,” the paper explains.

    “The magnitude of the effect shocked us,” said Linda Pan, a PhD researcher in earth and planetary science at Harvard’s Graduate School of Arts and Sciences. “Previous studies that had considered the mechanism dismissed it as inconsequential.”

    Pan’s fellow graduate student and co-author Evelyn Powell explained the significance of the findings.

    “If the West Antarctic Ice Sheet collapsed, the most widely cited estimate of the resulting global mean sea level rise that would result is 3.2 meters,” Powell said. “What we've shown is that the water expulsion mechanism will add an additional meter, or 30%, to the total.”


    Perhaps more alarmingly, however, were the results of one of Pan and Powell’s simulations which indicated global sea level rise caused by the melting of the ice sheet could increase 20%.

    MORE FROM FORBESNobel Prize Winners Demand Climate Action For 'Survival Of All Life'By David Vetter
    Previous forecasts have put sea level rise this century at around one foot, or 0.3 meters, according to NOAA. The new findings from Harvard therefore have further grave implications for low lying regions, islands and coastal communities.

    The report comes just two days after news that Antarctica’s fourth largest ice shelf, the Larsen C Ice Shelf, is in imminent danger of collapsing.

    Click here to view Climate Central’s incredibly detailed interactive global map that shows all areas threatened by sea level rise by 2050.

    Jerry X. Mitrovica, Harvard’s Frank B. Baird Jr. Professor of Science in the Department of Earth and Planetary Sciences and a senior author on the paper, said Pan and Powell’s findings would necessitate a reset of previous understandings of the effect of Antarctic ice loss on sea level rise.

    “Every published projection of sea level rise due to melting of the West Antarctic ice sheet that has been based on climate modeling, whether the projection extends to the end of this century or longer into the future, is going to have to be revised upward because of their work," said Mitrovica. “Every single one.”

    "No matter what scenario we used for the collapse of the West Antarctic Ice Sheet, we always found that this extra one meter of global sea level rise took place," Pan said. "Sea level rise doesn't stop when the ice stops melting. The damage we are doing to our coastlines will continue for centuries.”
     
    MyAccount dapped this.
  2. Deflatedhoopdreams

    Deflatedhoopdreams Veteran Supporter

    Joined:
    May 29, 2012
    Messages:
    33,653
    Daps Received:
    69,132
    Reppin:
    The Rucker
    Reputation:
    6,470
    Coli Cash:
    $164641.47

    Yup.
     
  3. ADevilYouKhow

    ADevilYouKhow Rhyme Reason

    Joined:
    May 11, 2012
    Messages:
    20,451
    Daps Received:
    44,051
    Reppin:
    got a call for three nines
    Reputation:
    1,140
    Coli Cash:
    $352136.00

    It’s been real
     
    Majestyx, Wild self, Miles Davis and 6 others dapped this.
  4. ZoeGod

    ZoeGod I’m from Brooklyn a place where stars are born.

    Joined:
    Jul 16, 2015
    Messages:
    8,816
    Daps Received:
    50,187
    Reppin:
    Brooklyn,NY
    Reputation:
    4,450
    Coli Cash:
    $199871.45

    This a trend with climate change headlines is "worse than expected" or "sooner than expected." There is a growing number of scientists that are saying that its too late. All the things global governments are trying to do today like the Paris Climate Accords should have been implemented 30 years ago. So plenty of scientist are talking about climate mitigation which is scary because none of the nations around the world are talking about mitigation. Which means just like our response to the Coronavirus, Katrina, Flint Michigan it will be laughable and pitiful. Its very likely we will have a blue ocean event coming this decade. BOE means an ice free arctic which will have devastating ramifications on climate. Ocean circulations will alter the Gulf Stream which means Northern Europe under a deep freeze, Southern Europe being arid and full of deserts, more consistent meg hurricanes hitting the South and maybe even the Northeast. Megadroughts in the midwest and western states, Central Asia being an arid wasteland, the Middle East in a mega drought etc. This is what the next 15-20 years are gonna look like. Its pretty much over. And dont get me started on the methane deposits in the arctic. :francis:
     
  5. Russ

    Russ Veteran Supporter

    Joined:
    May 1, 2012
    Messages:
    38,849
    Daps Received:
    76,363
    Reputation:
    5,060
    Coli Cash:
    $109000.33

    World has to conquer India China and russia or simply eat the higher costs of eco friendly manufacturing and cut them out of the market entirely
     
  6. Eddie_1100

    Eddie_1100 All Star

    Joined:
    Nov 18, 2016
    Messages:
    2,751
    Daps Received:
    9,191
    Reputation:
    660
    Coli Cash:
    $500.00

    :whoa: I don’t see that happening in any way without kicking up too much dust. Pun intended.
     
  7. DEAD7

    DEAD7 Veteran Hall of Fame Supporter

    Joined:
    Oct 5, 2012
    Messages:
    46,314
    Daps Received:
    80,143
    Reppin:
    Fresno, CA.
    Reputation:
    3,790
    Coli Cash:
    $209697.90

    :russell:Progressive agenda is more important
     
  8. The axe murderer

    The axe murderer For I am death and I ride on a pale horse

    Joined:
    Aug 27, 2015
    Messages:
    36,044
    Daps Received:
    123,480
    Reputation:
    5,460
    Coli Cash:
    $200500.00

    Always prepare for the worst
     
    Deflatedhoopdreams and BK The Great dapped this.
  9. MyAccount

    MyAccount Superstar Supporter

    Joined:
    Sep 27, 2013
    Messages:
    8,854
    Daps Received:
    41,166
    Reputation:
    650
    Coli Cash:
    $315500.00

    Big government is the solution.
     
  10. N.J.stan

    N.J.stan RIP Mac Miller

    Joined:
    Apr 5, 2014
    Messages:
    4,184
    Daps Received:
    9,394
    Reppin:
    New Brunswick
    Reputation:
    790
    Coli Cash:
    $199000.00

    Climate change focus is a key part of the progressive agenda you clown :hhh:
     
    Wild self and Deflatedhoopdreams dapped this.
  11. dora_da_destroyer

    dora_da_destroyer puffin' fresh dro, boy

    Joined:
    May 1, 2012
    Messages:
    47,688
    Daps Received:
    179,238
    Reppin:
    Oakland...town bizness
    Reputation:
    11,770
    Coli Cash:
    $315740.00

    just tell me when florida is gonna be underwater
     
  12. TENET

    TENET [uk][de][terra]

    Joined:
    Nov 12, 2014
    Messages:
    14,992
    Daps Received:
    26,789
    Reputation:
    1,510
    Coli Cash:
    $200500.00

    HiphopRelated and BK The Great dapped this.
  13. MushroomX

    MushroomX Los Ingobernables de TSC Hall of Fame Supporter

    Joined:
    Aug 17, 2013
    Messages:
    14,002
    Daps Received:
    59,236
    Reppin:
    Wisconsin
    Reputation:
    5,650
    Coli Cash:
    $325013.00

    Cross off India, that place will become inhabitable; already having severe heat waves.
     
  14. Deflatedhoopdreams

    Deflatedhoopdreams Veteran Supporter

    Joined:
    May 29, 2012
    Messages:
    33,653
    Daps Received:
    69,132
    Reppin:
    The Rucker
    Reputation:
    6,470
    Coli Cash:
    $164641.47

    :gucci:
     
  15. DEAD7

    DEAD7 Veteran Hall of Fame Supporter

    Joined:
    Oct 5, 2012
    Messages:
    46,314
    Daps Received:
    80,143
    Reppin:
    Fresno, CA.
    Reputation:
    3,790
    Coli Cash:
    $209697.90

    :francis:Majority of leftist seem on board with killing the filibuster and letting whoever holds power ram their agenda through... if it means expanding fossil fuel output and defunding the EPA when rethugs have power, so be it... as long as there’s Medicare for all, who cares.
     

Share This Page

  1. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
    By continuing to use this site, you are consenting to our use of cookies.
    Dismiss Notice