Noticed this chart on linked on Andrew Sullivan’s site. The chart is misleading however, since all that landmass may not be usable or arable. This link may provide a better understanding of the population pressures a country may face.
For example while the first chart makes it appear that China has all this unused land the second table paints a different story. With 3 times the landmass, China has less cultivated land and less arable land than India. The United States with similar cultivated land and arable land as the two Asian giants has only about one-third the population.
Your blog keeps getting better and better! Your older articles are not as good as newer ones you have a lot more creativity and originality now keep it up!