Warming nights are degrading an unrecognized infrastructure of overnight cooling that human bodies, fire regimes, and electrical grids have silently depended on, and the failure is compounding faster than the daytime warming that dominates the headlines.

A basin compact's seasonal allocation meets every volume threshold while the river runs too warm for the fish to survive — and the data that could prove it will expose the last cold-water refuge that endured by staying off the map.

Public cooling-center listings compress building age, HVAC condition, filtration capacity, and operating hours into clean directory entries. Nobody has audited what the buildings behind the pins can actually deliver.