Because Santa stopped giving coal to all of the bad kids. His hoard caught fire thanks to a couple of raindeer playing raindeer games, and the heat is melting the north pole (that's why the ice up north is melting, but the ice at the south pole is growing). Be bad this year. Write Santa, tell him you want coal next Christmas. Tell your Congressman, too (they may try to ban coal mining to keep Santa from getting any more).