Talk:Sinking cities

Urbanization
It's not just the overextraction of groundwater that's a problem. Another issue is the weight of the city itself (see https://interestingengineering.com/7-sinking-cities-around-the-world ). As I understand it, the weight of the concrete buildings simply make the earth below it more compact (soil compaction) and probably also push out water out from the soil. Mention in article. --Genetics4good (talk) 14:07, 20 April 2021 (UTC)

Chart "Subsidence in Coastal Cities"
There is an obvious error in the chart "Subsidence in Coastal Cities." For New Orleans, it shows the "Mean current subsidence rate (mm/year)" as 60, yet it lists the "Maximum subsidence rate (mm/year)" for the same city as only 26. One does not need to be a statistician to know that "mean" means average, "maximum" means maximum, and the mean (average) can never be higher than the maximum, but 60 (the alleged mean) is greater than 26 (the alleged maximum). Since it's impossible for the mean to be higher than the maximum, were the two figures (60 and 26) accidentally reversed? — Preceding unsigned comment added by Gato63 (talk • contribs) 02:31, 4 March 2024 (UTC)