I suggest watching a Kevin Anderson lecture, basically, the 1.5C and 2C come from the political world, scientists then create research around that to get publis

I suggest watching a Kevin Anderson lecture, basically, the 1.5C and 2C come from the political world, scientists then create research around that to get published, get their research into IPCC reports, etc. It is a farce and purely a political one. They are obsessed with "good news" and "hope". The assumptions for how 1.5C is "possible" amount to futurism. The goalposts keep moving too - once it was a 66% chance of staying under 2C, now it's common to talk about exceeding 2C and lowering the temperature later, which is about as plausible as running a car into reverse while the gas pedal is down.