Meanwhile, the blackened snow lining city streets helps reveal what in other seasons is rarely noticed: all the soot and crud left behind by auto exhaust, oil drippings, and the gradual wearing down of tires and brake linings. All of this gets swept into the local creek, which in this photo is Harry's Brook, flowing under the road where it dips down in the distance.
Given enough time, the snow will turn completely black with soot. This crud is what we are feeding to all the aquatic life in the local streams.
Given enough time, the snow will turn completely black with soot. This crud is what we are feeding to all the aquatic life in the local streams.
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