Either one they get, they'll just have "school-from-home" now, which is a shame.

IQ has been shown to be affected by AQI. We probably should hold school on very high AQI days.

Or too cold. Seems like some parts of the world at least are getting more of those polar vortex, ultra cold days. And if climate change shuts down the gulf stream, maybe Europe gets a lot for cold days, too

How hot is too hot? Our kids were in 43° last month (109°F).