The snow exposed to cars is covered in grimy residue, while the snow away from traffic remains clean.
That rationale is just stupid. It is indeed a lot of dirt, as every tire caries dirt and many tires = many dirt.
Of course it also includes the other shit. I am just not so sure about the claim that “this is no dirt or else it would be also visible on the top road”
I’m not denying that cars are dirty either, but it’s also easy that the bottom pic could look like the top pic and vice versa based on when the photos are taken. Timing of the snowfall, if one road gets sanded/salted and not the other, etc.
In places where lots of people walk, the snow is white. In places where people cross a road, the walking paths leading from the crosswalk are brown.
The “dirt” comes from cars and is highly toxic.
It’s usually sand. The snow is dirty where they put a lot of sand if people walk there. I hate cars too, but it’s not all from cars
Sure buddy
the forbidden Oreo ice cream
Look at the backs of some large trucks and you’ll see the sort of crud they’re emitting just sticking to them, too.
