Population Statistics //free\\ -

By 2100, the UN predicts the population will peak at around . The challenge of the next century won't just be "too many people," but rather the imbalance of where people are located and the resources they consume.

We often visualize population statistics through a "population pyramid." Traditionally, these were wide at the bottom (many children) and narrow at the top (few elderly). Today, many of these pyramids are flipping. population statistics

The "replacement level" is generally 2.1 children per woman. Many developed nations (and increasingly, developing ones) have fallen far below this, leading to shrinking native-born populations. Life Expectancy By 2100, the UN predicts the population will peak at around