Meanwhile, another city with iconic horse-drawn carriages, Vienna (where the carriages, unlike in New York, actually use city streets), is debating whether the horses should get a day off if temperatures rise above 30° C (currently it's 35°), and only a few officials are meekly suggesting that a complete ban might be considered at some point in the future.

https://www-ganz--wien-at.translate.goog/wien/news/pro-contr...

Can't afford to lose some of that tourist cash so they make up any excuses.

I saw a lot of sad horses in Sevilla, with above 36°C that day

Meanwhile in Florida cowboys ride their horses every day in 38C+ weather.

I was a bit surprised to see quite so many when I was over last August and it was well north of 35°C - you'd think with the water-bottle and sprinkler stations everywhere they'd also throw out a couple of troughs of water for the horses.

They all seemed to be in good health, from what I saw, but horses are pretty finicky creatures - we humans domesticated the horse about 20,000 years ago, breeding the strongest healthiest creatures we could, and they're still a bit shit - and I wouldn't be surprised if a less attentive driver is going to end up killing one.