Prior to asphalt - paved roads the term was used for clear ice over deep water.
Black ice is stronger than white ice, which is important if you’re deciding whether it’s safe to drive over or put an ice-fishing shelter.
It’s also a hazard for rock climbing and scrambling, because it’s just as unexpected on a rock face as on a road or bridge (well, maybe more expected on a bridge because they’re known for it).
The opposite/corollary of black ice is white ice.
Prior to asphalt - paved roads the term was used for clear ice over deep water.
Black ice is stronger than white ice, which is important if you’re deciding whether it’s safe to drive over or put an ice-fishing shelter.
It’s also a hazard for rock climbing and scrambling, because it’s just as unexpected on a rock face as on a road or bridge (well, maybe more expected on a bridge because they’re known for it).
We could call it ninja ice