Though demand for heating should be falling simultaneously, no? I wonder what the net CO2 tradeoff is there. At least historically with burning fuels to create heat, that likely contributed more per unit of degree-change than AC, however with Heat pumps now that's probably either a wash or reversed, if I had to guess.

Yeah, there is a lot more energy spent for heating, https://www.eia.gov/energyexplained/use-of-energy/homes.php. Climate change is a problem, but this narrative that poor people near the tropics will needs to use some energy, the world is ending is kinda gross. Even with ACs they will only use a fraction of the energy of people living in Finland or Canada. Plus, the energy they do use will have a lower carbon footprint.