Stop Space Junk

If we don't act now in a few hundred years we will be trapped on earth by space junk. Global warming is making the earth less and less uninhabitable soon we might need to leave. You may not be around by the time we are trapped but your children will be and your grandchildren will too. They all will be stuck on a dying planet and the human race will end. Do you want to risk the lives of your future loved ones? According to https://www.nasa.gov/mission_pages/station/news/orbital_debris.html they estimate that there is over 500,000 pieces of space junk in orbit travelling at 17,500 mph. Isn't it scary that only 15,000 pieces are recorded by the Department of Defense.