how does jim elsner spend his days figuring out this problem? well, i try to put things together. i put the theory together with the models in the data. i will talk about two theories. these are the two theories that allow us to get some answers about what hurricanes might be like in the future. you probably are not physicists or statisticians, so i will not go that deep, but these are the deep structures and which we can hang our hats on to try to understand what might it be like in the future. we will start with thermodynamics. this is my thermodynamics slide from popular mechanics, which basically describes how a hurricane operates. all you have to keep in mind is a couple prepositions, ok? the first one is in. the second one is up. the third one is out. in, up, and out. that is the circulation of a hurricane, which you are probably not aware of it you think of circulation like this, these things that are spinning. that is the wind that will destroy your home, produce the surge, slide your house. but that is not the circulation that drives the hurricane. it is the in, up, and o