The laser-based suggestions sound pretty feasible. A laser based on the moon might even be plausible. The key is that you don't necessarily need a lot of energy

The laser-based suggestions sound pretty feasible. A laser based on the moon might even be plausible. The key is that you don't necessarily need a lot of energy to bump a piece of debris enough to knock it out of orbit. http://www.spacefuture.com/archive/orions_laser_hunting_space_debris.shtml http://www.spacefuture.com/archive/orions_laser_hunting_spac...