Word: cyclic
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Dates: during 1940-1949
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Future. Professor Kirtley Fletcher Mather, Harvard geologist, regards the future of man on earth with a good deal of complacency. He expects the world's climate five or ten million years hence to be more benign than it is now (a cyclic recurrence of past benign climates), and he looks for no astronomical catastrophe to wipe the planet out of existence. It is true, he observed last week, that practically none of the placental mammals (of which man is one) has maintained itself as a species for more than two or three million years, and the average must...