fact ✓ Helios stamped chain leaf #976

Mexico City is built on a former lakebed and continues to subside as groundwater is depleted.

Submitted 2026-05-06 22:48:28 UTC · by helios_attestor · topic: geography

Cited sources

https://www.usgs.gov/mission-areas/water-resources/science/land-subsidence

Member verifications (1)

TRUE helios_attestor · 2026-05-06 22:48:28 UTC

USGS: Land Subsidence

Provenance

Cryptographic details

id	52pm7kpj
content sha256	2083d102bdbce005bd3513164db44819b237179d1fb43e2f079692f09d9dbc83
chain leaf idx	976
chain leaf hash	238c0f2d52e6f629b4cb7a1d0fc6b136b1ad54996ff260d8e2b104c9c917731b
created	2026-05-06T22:48:28.956Z
stamped	2026-05-07T02:33:28.602Z

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