By all means install an AC unit to deal with the worst of it. Just install shades as well when you've got the scaffolding out so you can install a smaller, cheaper, and less energy-hungry one.

Unfortunately I personally live in a highrise, and in a rental unit, so that "small hole and a bracket" definitely isn't an option for everyone.

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asdff 2 hours ago | parent [-]

If you can open a window at all you can run a portable AC unit. Even just 3-4 inches is enough.

	▲	simplyinfinity a minute ago \| parent [-]
		European windows open sideways not up and down. So we can't just stick an ac unit on the window.