Heat stress is related to temperature.[48] It also increases if humidity is higher. The wet-bulb temperature measures both temperature and humidity. Humans cannot adapt to a wet-bulb temperature above 35 °C (95 °F). This heat stress can kill people. If global warming is kept below 1.5 or 2 °C (2.7 or 3.6 °F), it will probably be possible to avoid this deadly heat and humidity in most of the tropics.

This is one of those cases in which most people will take the sentence apart and keep only the parts that feel comfortable to them and their current inaction. They will read "it will probably be possible to avoid this" and use that to justify business as usual, but they will discard the important caveats in that same sentence.

"If global warming is kept below 1.5 or 2 °C" implies uncertainty as to the threshold. Current warming as of 2024 (+1.6°C), adjusted downward to account for El Niño (-0.2°C) and upward (+0.4°C) to account for as-yet unrealised heating effects of reduced aerosol pollution, is 1.8°C. The current trend will most likely result in warming above 2°C by 2030. Keeping the warming below 1.5°C is already impossible, and keeping it below 2°C may be possible if and only if drastic action is taken immediately.

"in most of the tropics" is an important point that is rarely made. Temperatures in the tropics, while generally warmer on average, are relatively stable. There are fewer extreme heat events. Even if it is "possible to avoid this deadly heat and humidity in most of the tropics" as stated in the article, that doesn't change the fact that people living at "temperate" latitudes are still fucked in the summertime.