Among other reasons, wind blows to CA from Northern China where they are very much into coal. That air hits the mountain ranges we have inland and all the pollu

Among other reasons, wind blows to CA from Northern China where they are very much into coal. That air hits the mountain ranges we have inland and all the pollutants hang out. See https://www.washingtonpost.com/archive/politics/2006/10/08/chinas-air-pollution-reaches-california-span-classbankheadus-estimates-that-on-some-days-25-of-las-smog-is-traceable-to-countryspan/a7cdf4de-c63b-4a9b-971c-6b7750e84828/ https://www.washingtonpost.com/archive/politics/2006/10/08/c...