> It turns out, in those temperatures, even young and healthy people can't survive.

Of note: that’s literal, even doing nothing and sitting in front of a fan you can’t cool down.

And do one of the issues 35 WBT “hides” is that any activity lowers the heat stress threshold. Sugarcane workers are already dying due to heat stress today, and have been for a while. There’s been an “epidemic” of “kidney disease” in central american sugarcane fields for a decade now, with young men showing rates of kidney diseases 15x the norm.