In the days since Richmond’s public drinking water utility collapsed, two documents have emerged that appear to indicate infrastructure problems at the water treatment plant were well-known.

Car air conditioning feels weak for two reasons: the cabin starts out as a heat-soaked box, and the AC system has limits on how fast it can pull that heat back out. The fastest path to colder air is ...

Smelling gas when the AC is on usually means raw fuel or exhaust fumes are being drawn into the cabin via the ventilation ...