human-population-through-time-1

It took 200,000 years for our human population to reach 1 billion—and only 200 years to reach 7 billion.  Watch the stunning growth in the video…

But growth has begun slowing, as women have fewer babies on average. When will our global population peak? And how can we minimize our impact on Earth’s resources, even as we approach 11 billion?

[Youtube]