Space junk is a serious ecological problem just being brought to the forefront of understanding. With imminent space travel, the amount of debris in orbit from satellites to rocket components is dangerous to space travel of the future, and requires a concerted effort to bring this space garbage under control.
Removal of this impediment to space and orbital travel will be through new technology salvage craft capable of almost daily travel to the orbital paths of this debris.
Humanus and Rekom are working on solutions to this issue, and will post information on the available technologies as they become useful for this purpose.
Below is a picture obtained from the NASA galleries depicting the extent of the pollution in orbit.