And for a better effect they could use paint that can cool below the ambient temperature by radiating infrared to space (if they aren't already using that, but

And for a better effect they could use paint that can cool below the ambient temperature by radiating infrared to space (if they aren't already using that, but it's probably more expensive): https://www.nature.com/articles/d41586-019-03911-8 https://www.nature.com/articles/d41586-019-03911-8 Here is a YouTuber trying to making such paint: https://www.youtube.com/watch?v=N3bJnKmeNJY https://www.youtube.com/watch?v=N3bJnKmeNJY Another article: https://greekreporter.com/2022/05/08/revolutionary-white-paint-cool-greek-island-buildings-better-than-ac/ https://greekreporter.com/2022/05/08/revolutionary-white-pai...