I get that a lot of houses in Europe don't have built-in air conditioning.

What I don't get is the argument that houses built to hold in heat in winter are inherently hard to cool. Insulation works both ways? In Texas, we want as much insulation as possible!

I get it's an infrastructure problem but it's one that has been staring Europe in the face for decades.

@gwynnion No need for insulation during winter if enough (cheap) heating?
@Erik_Haugaard @gwynnion Heating here is never cheap. We have obscene energy costs. UK residential electricity is typically 50% to 100% more expensive per kilowatt-hour than in the USA! In the winter, millions have to choose between heating and eating - and in this current heatwave, it's just too expensive for the median household to run portable AC units for hours at a time, day after day.