Quote:
Originally Posted by pj3000
Necessity is the mother of invention.
California, as I'm sure you're aware, is unfortunately blessed with all the best ingredients for terrible air quality.
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Very true.
And it's amazing how little emissions are necessary to create a visible pollution layer when the topography is a certain configuration. The last time I was in Santa Fe, NM, not exacty a bustling metropolis, the valley between the mountain ranges had a thick layer of NOx and PM due to the topographically induced inversion on that clear, cold morning.