Sinking cities: How land subsidence is affecting Arizona
The Grand Canyon State's cities may not have any of George Strait's prized "ocean front property in Arizona," but they do have one thing in common with coastal cities around the world: The cities are sinking. In fact, the whole state is.
A recent study published in the journal Nature has shown that the world's coastal cities are falling prey to subsidence in addition to the already-documented rising sea levels.
Land subsidence is a geological term for the sinking or settling of the Earth's surface. Subsidence can be caused by a variety of factors, but in most cases it's accelerated by the extraction of groundwater.
Arizona, of course, doesn't have rising sea levels to contend with — but that doesn't mean land subsidence is a non-issue.
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