I would like to suggest we start with the all of the Air Quality Management districts and their enforcement nazis. A friend pointed out that they had 10 inspectors running around the bay area on Xmas Day. They had PRE-PLANNED it. It looks like they had pre-planned a spare-the-air day so they could optimize their enforcement efforts. It was a nice day - didn’t see ANY real issues with the air.
Oh -I’m an expert on this by the way. I grew up in LA during the 60’s and 70’s. I know what BAD air looks like!
Back in the '70s there was a joke about an Angeleno who went to Texas. He told people there, "Aren't you a bit uneasy breathing something you can't see?" Yeah, I can remember, it really did look bad.