34 ms·

Sea levels have risen due to global warming by about 20 cm in the past century. This is most definitely one of the reasons for the receding coastline in Louisia

Sea levels have risen due to global warming by about 20 cm in the past century. This is most definitely one of the reasons for the receding coastline in Louisiana. They are both contributing factors.

evilduck 10y ago
I lived in LA for several years. Global warming is a factor in receding coastlines worldwide, but on this particular coastline it's a very small factor relative to the complete mismanagement of waterways and marsh ecosystems. As it goes on, rising sea levels will play a bigger role in a large part of Louisiana disappearing, but right now the crisis is a different man made disaster. 20cm over a century is practically nothing for a state where a good chunk of the population lives a dozen feet below sea level and a couple dozen feet below the river.
- _fizz_buzz_ 10y ago
  1.) 20cm is huge. You cannot build a levee system around the whole Mississippi Delta. 2.) It is a combination of both. To put a number to it. 5–6 mm per year because of land subsidence and about 3 mm per year because of rising sea levels [1]. So, about 30 % is due to rising sea levels, which is pretty significant in my opinion. Especially because this effect appears to be accelerating. These numbers seem small, but their effect is devastating. 3.) I have also lived in LA for a year :) [1] http://geology.gsapubs.org/content/43/6/519 http://geology.gsapubs.org/content/43/6/519
- hackuser 10y ago
  > I lived in LA for several years. I'm not sure how that informs you on the cause.
  - ska 10y ago
    I suspect LA is short for Louisiana, not Los Angeles, in this context.
    - hackuser 10y ago
      I figured. My point is that locality doesn't inform you on whether the coastline is receding due to climate change. Do people in Los Angeles know the causes of their droughts, simply by virtue of living there?

34 ms·

Sea levels have risen due to global warming by about 20 cm in the past century. This is most definitely one of the reasons for the receding coastline in Louisia

by _fizz_buzz_ 10y ago

Sea levels have risen due to global warming by about 20 cm in the past century. This is most definitely one of the reasons for the receding coastline in Louisiana. They are both contributing factors.

evilduck 10y ago
I lived in LA for several years. Global warming is a factor in receding coastlines worldwide, but on this particular coastline it's a very small factor relative to the complete mismanagement of waterways and marsh ecosystems. As it goes on, rising sea levels will play a bigger role in a large part of Louisiana disappearing, but right now the crisis is a different man made disaster. 20cm over a century is practically nothing for a state where a good chunk of the population lives a dozen feet below sea level and a couple dozen feet below the river.
- _fizz_buzz_ 10y ago
  1.) 20cm is huge. You cannot build a levee system around the whole Mississippi Delta. 2.) It is a combination of both. To put a number to it. 5–6 mm per year because of land subsidence and about 3 mm per year because of rising sea levels [1]. So, about 30 % is due to rising sea levels, which is pretty significant in my opinion. Especially because this effect appears to be accelerating. These numbers seem small, but their effect is devastating. 3.) I have also lived in LA for a year :) [1] http://geology.gsapubs.org/content/43/6/519 http://geology.gsapubs.org/content/43/6/519
- hackuser 10y ago
  > I lived in LA for several years. I'm not sure how that informs you on the cause.
  - ska 10y ago
    I suspect LA is short for Louisiana, not Los Angeles, in this context.
    - hackuser 10y ago
      I figured. My point is that locality doesn't inform you on whether the coastline is receding due to climate change. Do people in Los Angeles know the causes of their droughts, simply by virtue of living there?