Population Growth!

Earlier this week, the (estimated) total number of people in the world blew past 7 billion (the chart above is out of date).
To put that number in context, for the first 70,000-odd years of human history, the total human population was around 1 million. Then, over the course of the next ~10,000 years through 1800, the population gradually grew to 1 billion. And now the population has increased 7X in the past 200 years.

Henry Blodget at Business Insider is posting about it.