Likewise for atmospheric CO₂ concentrations; "it's just 0.04 %" – dude, you surely start noticing the effects of "just" 0.04% alcohol in your blood. Or hey, try cyanide.
What is wrong with people?!
Look, I just had a glass of cool water, perhaps between five to ten degrees celsius. And I'm about to have a coffee. What's that, fifty degrees? With 5% to 10% milk concentration. And I think I'll be just fine. You don't?! What the hell is wrong with you?
If you want to explain why a two-degree increase in average temperature on the planet is dramatic, then you need to do better than compare it to something completely different.
If someone's home is 24-26C, and they turn on their oven to cook something for dinner, it will warm up their home, depending on the size of their home and ventilation.
Overall the average temperature increase won't be that much, but they localized temperature increase is very dramatic. Your apartment might not be hot, but that small area that is 200C is having a dramatic impact on everything else in your apartment.
Bonus points for extra comprehension if they have a basement or ground floor that has a substantially lower temperature. Again, the average temperature might be high, but it doesn't mean that it's hot everywhere in the house.
Understanding this isn't rocket science, and the only reason people are ignoring it is because people in power have a vested interest in keeping people ignorant of it by outright lying, obfuscating, or denying it.
A change in average temperature (either direction) does not imply extreme temperature swings. My current apartment is much warmer than my previous apartment! I'm not dying, and the extreme temperatures at the oven or the cool parts of the apartment are not any more extreme than they were before. And no, I haven't ever noticed my oven having a dramatic impact on everything else in my apartment. So, no, this kind of appeal to intuition about the average temperature in an apartment does not help explain why 2degC across the globe means more than just.. a bit warmer temperature. And most certainly comparing it to something like body temperature (which tends to be very steady compared to air temperature) does not help at all.
Are you sure? I have found that difference between 28 and 30 or 30 and 32 celsius is very noticeable.
Certainly, if someone told me my room was going to be 2 degrees hotter permanently, I wouldn't think twice about it.
This definitely does not happen to me in these temperature ranges. 32 is too hot to function no matter how long I sit there. 30 is livable, but permanent discomfort. 28 is more or less ok, through I prefer lower temperatures.
You can feel how those differences affect your body.