It's Getting Hot in Here

Our Sweltering Cities Will Pay a Heavy Price

Heatwaves lower productivity and may lead to urban depopulation.
Photographer: Jim Reed via Getty
Lock
This article is for subscribers only.

It's so hot in Phoenix that American Airlines Group Inc has had to cancel scores of flights. With temperatures touching 119 degrees Fahrenheit (48 degrees Celsius) in the Arizona city, some jets couldn't generate enough lift.

As a metaphor for the brake that climate change could put on global economic output and asset prices, grounded planes are hard to beat. The sweltering conditions, which have engulfed much of western Europe too, are probably just a taste of what’s to come as greenhouse gas emissions create more drought and heatwaves.