We are no way near this, of course. I only mention this family anecdote to show off how we can do heat.
Admittedly, it is hot. Especially in the evenings when the wind drops. AC is not a thing in private homes here. It's all down to keeping the heat out which is not too difficult in these boring proper energy efficiency regulated buildings with triple glazing, brick walls, cool basements and insulated roofs - and blinds. I love the smooth swishing sound of the blinds going down when the sun climbs over the hedge.
We also have a total of three ventilators, which we move from room to room.
At night, we open all the windows and wait for the cool night air to arrive while we drift off to sleep. I love open windows at night. For one thing, nightmares can escape so much faster, escaping in a silent whoosh. But also, the birds. They wake me at five and thanks to them I am up and showered and with my first cup of tea on the patio by six, reading the news. And I arrive in my office before eight after cycling through the magic forest. All before the heat starts in earnest.
The office is another story. In theory, the building I am in is top notch energy efficient, designed and built according to the latest renewable whatnot's requiring no CO2 gobbling AC. Unfortunately, inside we are surrounded by gadgets such as computers and scanners and printers and monitors and all their latest offspring, which all produce heat. But - as we all agreed this morning while we were fighting for the best position in front of the one and only stand-alone fan - we cannot cheer the school kids striking for action on climate change one week and demand AC the next. Surely not. Definitely not. Not us. (Occasionally, we sneak into the research lab freezer room - purely for comparison.)
So far so good. I'll report back when the garden has dried up.