“And California can choke on all that “clean air”.”
The local Indigenous (Indians) people referred to the San Joaquin Valley as “The Valley of Smoke” long before industrialization, long before White people arrived in California. We are talking what!? about one hundred sixty years ago? Long before Barbecues Galore, and Craftsman riding mowers anyway.
Water Vapors. The coastal mountain range that holds in the Water vapers causing the haze we see.
Not to mention all the lightning caused wildfires that had to burn themselves out.