"are we doing enough" NO but then the logistics of removing space junk are obvious to paint in broad brush strokes, even if hazy. Big items - you can get at. Not easy but imaginable. Paper thin shards of aluminium and their number cannot be measured currently, and finding them needs a satellite, which itself would become junk if it got it wrong. The concepts are easy, the logistics are not. That's GPS in the garbage some day. But think laterally, and Electronic Engineers have had this vision for 40 years (trust me I am one, I read the publications): LED street lights - their light can carry data. Adverts & location data. It would pay for itself in urban areas. Rural - always lose out IME. Maybe phone masts will cover that, approximately!
|