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Shades of Malthus and Darwin
Natures Stored Capital and Mans Annual
The Ability of Science to Meet Future Demands
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abundant acres adequate agricultural alunite America annual production Asia attained average Axis powers billion barrels birth rate Britain capital cent century citizens co-operation coal concerning consumption continue copper countries crops decades democracy democratic deposits earth economic efficient essential estimated Europe fact factors fertilizers figure foreign future geologic Germany human hundred ideas igneous rock increase individual industry intelligent interdependence iron J. D. Bernal Japan kerogen Lake Superior Lake Superior region land less live Malthus mankind ment metals million tons mineral fuels mining modern nature nonrenewable resources oil shale petroleum phosphate plan for freedom political population possible postwar potential practical present principle processes quantity raw materials regimentation result rocks scientific sedimentary rocks ſº social society soil sources Soviet Union square miles supply tion totalitarian trend unmined reserves utilization world organization World War II