4 ms·

How much sea level rise?

• tpmx 3y ago
  Northern Europe: (Likely) neutral to negative, due to land rise (from the latest ice age).
  • rspoerri 3y ago
    where do you get that from? i dont see that in the cnn report nor in the study.
    • tpmx 3y ago
      This is a good place to start learning about the phenomenon: https://www.lantmateriet.se/en/geodata/gps-geodesi-och-swepos/reference-systems/postglacial-land-uplift/ https://www.lantmateriet.se/en/geodata/gps-geodesi-och-swepo... Postglacial land uplift (https://en.wikipedia.org/wiki/Lantm%C3%A4teriet https://en.wikipedia.org/wiki/Lantm%C3%A4teriet Lantmäteriet (The Swedish Mapping, Cadastral and Land Registration Authority) is a government agency in Sweden that provides information on Swedish geography and property. ... Lantmäteriet was founded in 1628, when Swedish general mathematician Anders Bureus was tasked with systematically mapping out the Swedish Empire and educating new land surveyors under directions from the Swedish King Gustaf II Adolf)
  • euroderf 3y ago
    But the uplift is a lot slower than sea rise, yes ?
    • tpmx 3y ago
      In most of Sweden (except the very south) the uplift is faster than the current projected sea rise.
      • euroderf 3y ago
        But it can't be so for the long term, can it?, if projected sea rise is like over ten meters.
        • tpmx 3y ago
          As an example: 10k years ago during the last major ice age, Stockholm was 150 meters below the current sea level. The land is springy... (https://sv.wikipedia.org/wiki/Landh%C3%B6jningen_i_Stockholm https://sv.wikipedia.org/wiki/Landh%C3%B6jningen_i_Stockholm - use Google Translate.) In 2009 a dock needed to lowered by 0.5 meters to keep up with the land rise.
          • euroderf 3y ago
            AFAIK there's not the same phenomena in Helsinki. Is it so much less springy across the gulf ?
            • tpmx 3y ago
              Seems odd...
• bloopernova 3y ago
  "Up to 5.3 metres / 17 feet." From the article: "West Antarctica is already the continent’s largest contributor to global sea level rise and has enough ice to raise sea levels by an average of 5.3 meters, or more than 17 feet. It’s home to the Thwaites Glacier, also known as the “Doomsday glacier,” because its collapse could raise sea levels by several feet, forcing coastal communities and low-lying island nations to either build around sea level rise or abandon these places"
  • sp332 3y ago
    I saw that, but it doesn't say how much of that is at risk for now or how fast it would happen. The paper has some rates of melting but doesn't translate that into rate of sea level rise.
    • deleted 3y ago
      [deleted]
  • jwestbury 3y ago
    And it's worth noting, something like 450,000,000 people live within 5m of sea level. This would be absolutely catastrophic for the entire world. A significant contributing factor to European political strife over the past decade has been the arrival of refugees from other regions; and Europe is currently home to about 22 million refugees[0]. It's hard to imagine how wealthier regions will cope with the influx of 450,000,000 refugees (admittedly, many will be staying within their home regions -- but many will likely not). [0] https://reporting.unhcr.org/operational/regions/europe https://reporting.unhcr.org/operational/regions/europe