The Era of Air-Conditioning

The US desert southwest
Is a sort of miracle
Rigged by irrigation and
Air-conditioning.

How long the era will last,
Is, in the American expression,
Anyone’s guess, but not long,

The best estimates, at least,
Suggest. Previous eras
Left visible bones and wrecks

From a century or less
Of successes that went bust.
You must see this rhyme coming,
Written in their dust. You must.