The opening chapter of Kim Stanley Robinson's "The Ministry For the Future" is harrowing. It describes the effects of a heat wave with wet bulb temperatures ove

The opening chapter of Kim Stanley Robinson's "The Ministry For the Future" is harrowing. It describes the effects of a heat wave with wet bulb temperatures over 35C in a small city in India. People have air conditioning, but the electrical grid isn't up to the increased demand, so the power goes out citywide. Casualties are extremely high. Where I live, in the southern US, it'll be a while before wet bulb temperatures top 35C in the hottest weeks of the summer. But they already hit those lower temperatures in the article (31C) quite often (e.g., 35C with 70% humidity), and last week a couple days were over 38C (wet bulb temperature of 33C assuming 70% humidity, though luckily so far it's usually less humid when it's that hot - around 55%). Wet bulb calculator: https://www.omnicalculator.com/physics/wet-bulb https://www.omnicalculator.com/physics/wet-bulb