Sea Surface Temperatures have gotten very hot around the US, due to greedy SUV drivers. Note all the hot yellow and red in the image above.
This in turn raises the humidity of the atmosphere. Water vapour and clouds are potent contributors to the greenhouse effect, and they travel to Mississippi and make it very cold. The more greenhouse gas you have, the colder it gets in Mississippi. Out of control heating will most likely lead to an ice age.
Extra map for Bob Tisdale.