How can we measure the sinking down of mega cities like due to over-extraction of groundwater?

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Bayan Hussien

Well,

Over-extraction of groundwater case study (attached link) was examined in details.

Article Impact of intense exploitation on the groundwater balance an...

Regards

Tarekegn Girma Fanta

In contemporary world mapping out under ground features is not yet completely accomplished but through lesser technology detecting mineral reserves is advanced. As to your interesting question the options may include such measures:

- identify plausible options for outward city expansion

-reducing the pace of vertical city development

- establishing new centers for human settlement(though costly)

Asim Farooq

Interesting discussion to follow.