Informant38

When asked how long it will take for the world's population to double, nearly half of all Americans say 20 years or less. This is hardly surprising, given the sensations of overcrowding all of us feel in our day-to-day lives and the persistent reports we hear of teeming Third World megacities. Yet looking beneath the surface of events, we can see that world population growth has already slowed dramatically over the last generation and is headed on a course for absolute decline.
[...]
Today, when Americans think of Mexico, for example, they think of televised images of desperate, unemployed youths swimming the Rio Grande or slipping through border fences. However, because Mexican fertility rates have
dropped so dramatically, by mid-century Mexico [and most of Latin America] will be a less youthful country than the United States."

Phillip Longman/delanceyplace