Increase in worlds vehicle fleets due to population growth, urbanization,
A. 1950s: NA was dominating car production. 1960s: Europe. 1980s 2000s:
B. China produces over 10 mil motorcycles, approx. 50% of worlds total.
Pollutants in Glendora/Crestline bc the wind pushes the air pollution that way; NOx
molecules are a worry in aircraft bc theyre released at a higher altitude, thus closer to
the atmosphere where it can do more harm vs on the ground where its scattered. Th