We have a conentration of refineries near the Port of Los Angeles/Long Beach. Every once in awhile tanks and the refinery will catch fire. If a tank goes up, they generally let it burn out, but plant fires, the fight. Plant fires are always followed by spikes in gas prices. I no longer live in the Los Angeles basin, which has what they call an inversion layer, the acts like a "lid" that holds all the pollution in suspension over the basin. It's cleaner air down there most of the time now. But when I was growing up, we often had orange smog for weeks at a time.
The more I do, the less I accomplish.