The gap between the rich and poor is growing among and within most nations. The political and social effects of unequal location of energy and other mineral resources are acute. Population numbers continue to climb. The global environment shows signs of widespread deterioration. Both natural and social environments are increasingly vulnerable to catastrophic disturbances... There may, however, be a cheering challenge in the possibility that out of its struggle with these realities the human race may move a bit nearer to behaving as if it were indeed one family.
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