What can the world expect during the next century as its population increases and its resources diminish? Last week in Manhattan three Caltech experts, Geochemist Harrison Brown, Biologist James F. Bonner and Psychologist John R. Weir, who have been studying this problem as a team, were optimistic—with qualifications.
They agreed that the world's population, now 2.6 billion, will continue to increase, reaching about 6.5 billion in 100 years. Industrialism will spread to underdeveloped areas. Both these trends will put tremendous strain on supplies of mineral raw materials.
Mine the Rock. Fortunately, Dr. Brown says,...