People around the globe are having way fewer babies. By the year 2100, that might turn into a pretty big problem for humanity, rather than the relief one might expect. Reorganize societies!
The world is ill-prepared for the global crash in children being born. If the number falls below approximately 2.1, then the size of the population starts to fall. In many ways, falling fertility rates are a success story.
Lessons drawn from economic studies of fertility behavior, along with data presented here from the Great Recession of 2007-2009 and the 1918 Spanish Flu.