PCU primary water and oil hub. Desalination technology export center. The most technologically advanced water infrastructure on Earth, selectively deployed.
The Gulf coast rebuilt itself higher after the sea-level adjustment, and Neo-Dubai rebuilt highest of all. PCU desalination architecture, vertical marine farms, climate-engineered corridors. It is the most water-secure city on Earth in 2060 — and the PCU uses that fact as a foreign policy instrument.
The desalination technology is the PCU's most valuable export. They sell it to everyone who needs it — which is everyone — at prices calibrated to maximize dependency. The technical assistance agreements include monitoring provisions nobody fully reads.