Originally Posted by nomadking

Where was I saying that the Sahara was hotter? Just think of two rooms connected via a door. One room is 'hot', the other a 'normal' temperature. Open the connecting door and the hotter air will escape and make the 'hot' room cooler and the 'normal' room hotter. Overall the heat in the two rooms is the same, the heat was moved from one place to another. Overall, no warming has taken place.