alt Hacker News> Remember that 1.5 degrees Celsius is a nearly end-of-the-world scenario
No, it's not end of the world. 3C is where things start getting bad. 1.5C is the target for the 2015 Paris climate agreement to try and avoid hitting 2C.
We are looking at more severe droughts, flash floods, and rising oceans where we are at, but not the worst of it like mass 40C wet bulb heat domes which wipe out all life underneath them.
This is an incorrect way to frame the impacts of temperature increases. 1.5, 2, 3C makes extreme events like the one you stated significantly more likely in a probabilistic sense. The ability of adapt is in part driven by frequency of extreme events as much as it is adaptability to specific thresholds. We are already experiencing deadly heat bulb events at current warming levels, the impacted areas and frequency of these events will strictly increase.