tural use. The main regions of the Earth which will have 

 to be made intensively cultivable are: Central Asia, from 

 the Caspian Sea to the west Chinese border (mainly moun- 

 tainous, and semi-desert or desert); all of Arabia (desert 

 or semi-desert) ; the Sahara in North Africa (desert or semi- 

 desert) ; the Congo of Central Africa (tropical rain forest) ; 

 most of South Africa, from the Congo to the Republic 

 of South Africa (grassland, scrubland, desert and semi- 

 desert) ; the western half of North America, from Canada 

 to Mexico (mountainous, grassland); nearly all of the 

 Amazon valley in South America (tropical rain forest); 

 the eastern inland region of South America, and the south- 

 em part of the continent (grassland, scrubland, and moun- 

 tainous) ; and the whole of the interior of Australia (desert 

 and semi-desert, scrubland, and grassland). Along with 

 the opening up of these vast regions, and in fact neces- 

 sary for their employment, will have to go vast migration 

 schemes to transfer people from the overcrowded Euopean, 

 and especially Asiatic, countries to the new regions. This 

 alone will require the formation of a world government, 

 apart from the many other problems which will necessitate 

 such an oganization. 



We can see that the basic cause of war is the over- 

 crowding of people which results from population increase 

 taking place in a particular region at a rate faster than the 

 rise in economic output, by considering the instances of 

 Europe, China, and the United States. The European popu- 

 lation was about 90 million in 1650; had grown to 130 

 million in 1750; to 270 million in 1850; and to 560 mil- 

 lion in 1950. This great increase in population, which has 

 taken place especially in certain countries like Great Brit- 

 ain, Germany, Italy, and the U.S.S.R., has meant that peo- 

 ple in these countries have, in the face of rising economic 



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