I just found this brief piece on southern Indiana's paleoclimate: https://peteakers.com/index.php/indiana/. I also live in the Hoosier State, so whether this place will be a good refuge in the coming decades is a very important question for me. Realistically, if I avoid premature death through famine, disease, war, etc., I could potentially live to the 2060s, maybe the 2070s.