Some Population Factoids

Before 1930, the population of Earth had never doubled within a human lifetime.

The population of Earth in 1960 was 3 billion, it is now 6.5 billion.

Since 2000, old people started outnumbering young people- globally.

By 2050, the estimated population will be between 9.1 & 11.7 billion people...

source: Scientific American 9/05 pg 50-51

ps at the moment, due to job loss and non-resident home ownership, Michigan's population is technically declining.