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I wonder if it's attributable to the asphalt and concrete having proliferated.

North of Phoenix, where there are actual mountains and trails, it's super clear that those materials hold heat for a long time after sundown.

When hiking/walking trails, just after sundown the temp drops very noticeably as one steps from concrete/asphalt to natural dirt, within a few steps.

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Is there a reason Phoenix (and Arizona in general) doesn’t use road/tarmac coatings to reflect the daytime heat?

https://reasonstobecheerful.world/reflective-white-streets-u...

There are some studies/pilot programs around the idea:

- https://www.phoenix.gov/streets/coolpavement

White cars, white roofs, white pavements should be mandated in hot areas.

mandated means more government which is more energy spent, i fear.

white roofs are definitely a thing here, and lots of white cars, and like the other post noted they're researching white pavements.

i never understand the people who buy black cars in this UV and just heat climate.

> mandated means more government which is more energy spent, i fear.

Mandated also means various degrees of ruining the lives of people who won't get in line which seems pretty drastic over something as petty as paint though.

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