In article .com,
Matthew Ota wrote:
I read the UN Repot on Space Debris, and it is quite alarming. We need
to clean up our act before it gets even worse. There are studies to
prevent spent boosters from exploding, etc...

More than studies: most new launchers take precautions against it, and
even many of the old ones have been retrofitted with changes for that.
(For example, the Delta second stage used to be notorious for exploding
eventually -- debris from those stages is a sizable part of the total
debris population -- but that was fixed quite a while ago.)

but that will not remove the junk that is already there...

Unfortunately true. Doing anything about the existing junk is hard.
--
"Think outside the box -- the box isn't our friend." | Henry Spencer
-- George Herbert |