"The problem of menacing space junk has spurred all sorts of
ideas to deal with it, from garbage scows and huge nets to
laser blasts and debris-snagging Nerf balls.

Now scientists are considering a huff-and-puff approach to
remove debris from orbit by firing focused pulses of atmospheric
gases into the path of targeted space trash."

See:

http://news.yahoo.com/huffing-puffin...213201019.html