You know what's fun about semiconductor manufacturing...
We've got a bunch of Superfund sites here in silicon valley. The old Fairchild semiconductor manufacturing facilities were here. Where a bunch of Google buildings currently are, in fact.
I've worked in a bunch of those buildings over the years. And generally speaking, the soil is so fucked up from manufacturing waste that they all have to utilize a 100% outside air strategy with a nighttime purge.
Basically: no air is re-used or re-cycled in the building. During the unoccupied periods, the fans keep operating as a means to keep the space constantly ventilated so the nasty shit in the dirt doesn't accumulate in the building.
Thats not an easy lift for an engineer. You've basically gotta have enough variation in cooling capacity to cover anything from 72 degree entering air to, say, 110 degree entering air...and bring it all down to 55 or 60 degrees.
Same thing for heating...though that's a bit easier with gas and hydronic loops.
Those are going away now, though, and DX air source heat pumps are becoming the norm. At which point it's gonna be a problem again.
God knows if any of the google employees know about what their offices are built on top of.
My point? Lotta nasty shit in semiconductor manufacturing. Not that I think it's preferable to offshore all of it. I do worry though, that our current administration is, ah, ill equipped to take local and long-lasting pollution from semiconductor manufacturing waste seriously.
Ho hum. Who's ready for $40 FV-1s?