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The pollution that makes snow so ugly after a few days on the street doesn’t magically appear whenever it snows. It’s always there, produced by our litany of motorized vehicles. It floats around the air we breathe for a while before settling on the ground, or in the water. Every time you walk behind a truck or big SUV and get a whiff of exhaust, you’re essentially taking a big bite out of a delicious soot-flavored snowcone.
But that’s just the cost of doing business in a modern civilization… right?
https://beyonddc.com/log/?p=1537oldId.20100302120947375
Biking in Baltimore