Figure J.1 shows the areas of various regions versus their populations.
Diagonal lines on this diagram are lines of constant population density.
Bangladesh, on the rightmost-but-one diagonal, has a population density
of 1000 per square kilometre; India, England, the Netherlands, and Japan
have population densities one third that: about 350 per km2. Many Eu-
ropean countries have about 100 per km2. At the other extreme, Canada,
Australia, and Libya have population densities of about 3 people per km2.
The central diagonal line marks the population density of the world: 43
people per square kilometre. America is an average country from this
point of view: the 48 contiguous states of the USA have the same pop-
ulation density as the world. Regions that are notably rich in area, and
whose population density is below the average, include Russia, Canada,
Latin America, Sudan, Algeria, and Saudi Arabia.
Of these large, area-rich countries, some that are close to Britain, and
with whom Britain might therefore wish to be friendly, are Kazakhstan,
Libya, Saudi Arabia, Algeria, and Sudan.