Make Peachtree Road into a walkplatz like they do in Frankfurt, Germany. In Frankfurt you can't drive into town, which forces people to use the subway. Frankfurt doesn't have smog days. If they made Peachtree attractive, it could work and bring more people downtown. Lower the birthrate.
Overpopulation is the major problem for everything.
We need more people going out of the world and less of them coming in. In India, they give you a radio if you get a vasectomy. That could be part of the solution. There is no solution. We don't like being around people we don't know, so that's why we use the car.