7,000,000,000

Apparently the human population of Earth is set to zoom past 7 billion sometime later this year.

Seems, too, that forecasts for a leveling off of human numbers somewhere in the 9 to 10 billion range have been revised upwards for some reason.

PBS - Need to Know: Standing Room Only

Nobody knows what can happen, but it's tough to be optimistic about the future for humanity and the ecosystem that supports it.