Ok, I'm not actually going to get into the whole global warming debate.  I just thought it would be a funny title for a post about a very cold day in the the Chicago suburbs.  If you look back a year on this blog you will find a post with a picture of sign saying -4.  When I woke up this morning it was at least -7 with a wind chill of -30.  Of course a little over a week ago it was +60.  As they say around here, "if you don't like the weather, wait five minutes and it will change".  Stay warm.