By 2050 or so, the world population is expected to reach nine billion, essentially adding two Chinas to the number of people alive today.
- DOT Earth, The New York Times.
The Science Times comes out on Wednesdays.
Energy usage forecast 2030.
Progress on Giardia vaccine. I know, right? It's a water-born parasite.
"Cooler year on a warming planet."
Image: Nasa, via Dot Earth, The New York Times.