PHILIP LONGMAN: Global Aging: A gray tsunami is sweeping the planet — and not just in the places you expect. How did the world get so old, so fast? “Ehrlich’s predicted holocaust, which assumed that the 1960s global baby boom would continue until the world faced mass famine, didn’t happen. Instead, the global growth rate dropped from 2 percent in the mid-1960s to roughly half that today, with many countries no longer producing enough babies to avoid falling populations. Having too many people on the planet is no longer demographers’ chief worry; now, having too few is.”

I’ve had some thoughts on how to address this.