> ## Content Index
> Fetch the complete content index at: https://www.cascadepbs.org/llms.txt
> Use this file to discover other available public pages before exploring further.

# Why some of the most populous cities in the U.S. are sinking
- URL: https://www.cascadepbs.org/show/newshour/extras/shrinking-cities-1752431835/
- Published: 2025-07-13T22:15:51.000Z
- Updated: 2025-07-14T00:00:19.000Z
- Description: ‘Slow motion crisis’: Why some of the most populous cities in the U.S. are sinking
- Author: Cascade PBS Staff
- Tags: PBS News Hour, #ZZZ_Show_fe87d6dc-6a0c-4ffb-800c-e787276ea730, #v1.6, #ZZZ_Extra_87dbfd8f-fe9b-46db-8949-50ba4fd45050, #extra

According to a recent study published in the journal Nature Cities, 28 of the most populous U.S. cities are sinking. It’s due to a phenomenon called land subsidence, exacerbated in many cases by humans extracting too much groundwater from underground aquifers. Ali Rogin speaks with Grist senior writer Matt Simon to learn more.