Something I've always wondered about: how do space agencies (NASA, SpaceX, etc) coordinate launches so that they don't hit this stuff? Are the coordinates aligned with launch pads blocked?
They map objects larger than about 10 cm (so, like, a softball?) and take manouvers if there's a debris cloud. Most stuff is shielded, some has more shielding.
As far as I know they really don't worry about it- there's a lot of space up there and considering how small satellites are the chance of hitting anything is astronomical.
Essentially, how do they avoid this: https://youtu.be/O-d8BJ2iljc?t=33s.