Back in the ‘60s, our teachers would open windows...
Open windows...yep, in the 60s, my teachers did that in both Taiwan & Alabama, generally considers warmer locations than Minnesota. Guess global warming is racist, and affects minorities the most.
“Back in the ‘60s, our teachers would open windows”
I suggest you get out your old photos back then and compare them with the kids today.
What you will see is that today’s kid is humongous compared with the 60’s kid.
The huge kids will generate more heat and radiate less (heat is generated by volume or 3 dimensions, it is radiated by surface area or 2 dimensions).
What needs to happen is massive dieting on the kids.