You can put this solution on YOUR website!
Earth, because we have artificial satellites. Recently two of them collided
and crashed together, they exploded in a huge blast because they were traveling 18000 mph! That's bound to happen more and more, the more satellites we shoot up there. Too many satellites crash into each other. The atmosphere burns the debri. We'll screw up our planet. When those satellites wear out and stop working, and they all will sooner or later, we won't be able to launch any more for they'd be crashing into each other all over the place. Somebody must act soon to start working on a solution to this problem.