Water vapor? Sounds dangerous. Hotter than air. Hotter than the water itself. It’s going to cause more warming in the atmosphere. It can scald. It must be stopped.
Dihydrogen Monoxide!
Thousands die every year from inhalation! Usually called drowning. Remember when this was used to mock environmentalists.
Dihydrogen monoxide parody
The dihydrogen monoxide parody is a parody that involves calling water by an unfamiliar chemical name, usually “dihydrogen monoxide”, and listing some of water’s properties in a particularly alarming manner, such as accelerating corrosion and causing suffocation. Wikipedia