I suspect that you’ll need to have high-level people like mayors doing it before you can get the general staff do follow suit.

I get some Fastly client challenge failure when trying to view the page. Here it is via archive.org, if anyone else has similar issues.

https://web.archive.org/web/20260424115234/https://www.theguardian.com/world/2026/apr/24/tokyo-workers-asked-to-swap-suits-for-shorts-to-combat-energy-costs-and-heat