- Kyle Almond asks Just how big is 7 billion?
- Ed Dolan asks Can Spaceship Earth Carry Seven Billion Passengers, and More to Come?
- Mario Rizzo notes there are Seven Billion People and Counting
- Tim Harford on Malthus’s ghost and baby number 7bn
- Matt Ridley writes on Coping with only six billion
Thursday, 3 November 2011
Interesting blog bits
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