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Isn’t this a problem that will only affect the inheritance of the grandchildren of your grandchildren? I mean how much does erosion affect this shoreline in con

Isn’t this a problem that will only affect the inheritance of the grandchildren of your grandchildren? I mean how much does erosion affect this shoreline in concrete terms? Is it even a few millimeters per year?

defrost 2y ago
From TFA: According to Fortune, which cited a report from The Boston Globe, the dramatic price decrease was related to an overheating planet — in a matter of a few weeks, the shoreline surrounding the property lost 70 feet from erosion due to rising seas. With reference to Maryland : Shoreline erosion in Maryland has stripped away land and sediment, bringing the coastline inland, submerging other areas, and putting infrastructure and valuable waterfront property at risk. Almost 70 percent of the state’s 7,000 miles of shoreline—close to 4,600 miles—is eroding. ... While much of the erosion has been caused by rising sea levels, diurnal tides, and boat wake, some of it is due to the surge of waves that accompany severe storms. Hurricane Isabel, for example, washed away shorelines along the Chesapeake Bay when it made landfall in 2003, in addition to causing $84 million in damage to shoreline structures. https://www.pewtrusts.org/en/research-and-analysis/issue-briefs/2019/11/marylands-living-shorelines-help-communities-become-resilient https://www.pewtrusts.org/en/research-and-analysis/issue-bri...
- spywaregorilla 2y ago
  The height is not quite the salient factor here though. It's being on the shore when there's hurricanes eroding the land. It's not that the sea level is rising above where the house used to be. It's that the land is being pulled away by hurricanes.
  - defrost 2y ago
    This post in toto is about erosion, not sea level rise, but both are related to AGW factors; increased total energy trapped at the lowest land | sea layer by increased insulation of the sky above also increases storm energy and general kinetic energy of the water. There's increasing shear cutting action for erosion, increasing height reach in storms and more slowly and steadily in mean sea levels. It's certainly distance from shore (and geology) that provides security here rather than height .. the UK famously has 100+ ft cliffs eroding away into the sea and taking houses with them, that's been ongoing for centuries but is accelerating of late.
- DSingularity 2y ago
  Where in “TFA” is Maryland discussed? Am I expected to also click through all the links and read all associated articles? Again I ask: much erosion per year (ie on average)? A dramatic number like “70ft in a few weeks” cannot be true for all shorelines all the time. Otherwise — assuming few == 3 weeks — we would be losing a mile every five years all around America. Do you really believe that?
  - defrost 2y ago
    > Where in “TFA” is Maryland discussed? It isn't, but as you asked that of the commenter above I took the liberty of looking for articles relating to erosion in Maryland, quoted a section and provided a link. You're welcome. > Am I expected to I do not speak on behalf of all HN users but for my part I expect nothing from you and note that you've delivered not the slightest demonstrated effort in researching your own question. > Again I ask: much erosion per year (ie on average)? That's not a well formed question, deep foundational schist (medium grain metamorphic rock) rising above the sea level does not appreciably erode on a human scale, sand banked coastlines can move on the order of millions of tonnes in a single season. > A dramatic number like “70ft in a few weeks” cannot be true for all shorelines all the time. No single answer is absolutely true for all shorelines for all time, this is so obvious it's surprising you even raise it. > Do you really believe that? Clearly not, why would you raise a straw position that's clearly false and then ask another if they believe it? If you have an interest in erosion studies you might look to, say, the work of the Scripps Institute, the Marine Science department at Queensland University, or any number of other fine oceanography research facilities about the globe.
    - DSingularity 2y ago
      Thank you for your response. Given the undertones of your comment I wonder if you think the original question I posed is a legit question for a person to have? Since you invoke HN I find it interesting how there is often a hostility toward inquiry by commenters like you. What’s the justification? Am I inexcusably lazy or maliciously operating in bad faith. Is it a crime to ask a question on a message board if it can be answered through google queries? If this was conversation in real life would you dismiss a person who might have asked the same question and tell them they should take out their phones out and answer their own questions with google? Anyhow, my stake in the topic is limited. I read the article, read the comments and found a position on erosion surprising so I asked a question. Not sure if this necessitates me seeking the fine institutes you’ve enumerated but maybe one day I will find myself in need of a deeper knowledge so thank you.

defrost 2y ago

From TFA: According to Fortune, which cited a report from The Boston Globe, the dramatic price decrease was related to an overheating planet — in a matter of a few weeks, the shoreline surrounding the property lost 70 feet from erosion due to rising seas. With reference to Maryland : Shoreline erosion in Maryland has stripped away land and sediment, bringing the coastline inland, submerging other areas, and putting infrastructure and valuable waterfront property at risk. Almost 70 percent of the state’s 7,000 miles of shoreline—close to 4,600 miles—is eroding. ... While much of the erosion has been caused by rising sea levels, diurnal tides, and boat wake, some of it is due to the surge of waves that accompany severe storms. Hurricane Isabel, for example, washed away shorelines along the Chesapeake Bay when it made landfall in 2003, in addition to causing $84 million in damage to shoreline structures. https://www.pewtrusts.org/en/research-and-analysis/issue-briefs/2019/11/marylands-living-shorelines-help-communities-become-resilient https://www.pewtrusts.org/en/research-and-analysis/issue-bri...

spywaregorilla 2y ago
The height is not quite the salient factor here though. It's being on the shore when there's hurricanes eroding the land. It's not that the sea level is rising above where the house used to be. It's that the land is being pulled away by hurricanes.
- defrost 2y ago
  This post in toto is about erosion, not sea level rise, but both are related to AGW factors; increased total energy trapped at the lowest land | sea layer by increased insulation of the sky above also increases storm energy and general kinetic energy of the water. There's increasing shear cutting action for erosion, increasing height reach in storms and more slowly and steadily in mean sea levels. It's certainly distance from shore (and geology) that provides security here rather than height .. the UK famously has 100+ ft cliffs eroding away into the sea and taking houses with them, that's been ongoing for centuries but is accelerating of late.
DSingularity 2y ago
Where in “TFA” is Maryland discussed? Am I expected to also click through all the links and read all associated articles? Again I ask: much erosion per year (ie on average)? A dramatic number like “70ft in a few weeks” cannot be true for all shorelines all the time. Otherwise — assuming few == 3 weeks — we would be losing a mile every five years all around America. Do you really believe that?
- defrost 2y ago
  > Where in “TFA” is Maryland discussed? It isn't, but as you asked that of the commenter above I took the liberty of looking for articles relating to erosion in Maryland, quoted a section and provided a link. You're welcome. > Am I expected to I do not speak on behalf of all HN users but for my part I expect nothing from you and note that you've delivered not the slightest demonstrated effort in researching your own question. > Again I ask: much erosion per year (ie on average)? That's not a well formed question, deep foundational schist (medium grain metamorphic rock) rising above the sea level does not appreciably erode on a human scale, sand banked coastlines can move on the order of millions of tonnes in a single season. > A dramatic number like “70ft in a few weeks” cannot be true for all shorelines all the time. No single answer is absolutely true for all shorelines for all time, this is so obvious it's surprising you even raise it. > Do you really believe that? Clearly not, why would you raise a straw position that's clearly false and then ask another if they believe it? If you have an interest in erosion studies you might look to, say, the work of the Scripps Institute, the Marine Science department at Queensland University, or any number of other fine oceanography research facilities about the globe.
  - DSingularity 2y ago
    Thank you for your response. Given the undertones of your comment I wonder if you think the original question I posed is a legit question for a person to have? Since you invoke HN I find it interesting how there is often a hostility toward inquiry by commenters like you. What’s the justification? Am I inexcusably lazy or maliciously operating in bad faith. Is it a crime to ask a question on a message board if it can be answered through google queries? If this was conversation in real life would you dismiss a person who might have asked the same question and tell them they should take out their phones out and answer their own questions with google? Anyhow, my stake in the topic is limited. I read the article, read the comments and found a position on erosion surprising so I asked a question. Not sure if this necessitates me seeking the fine institutes you’ve enumerated but maybe one day I will find myself in need of a deeper knowledge so thank you.