Tabitha M. Powledge discusses new projections for Earth's population: "If Homo sap‘s birth and death rates remain more or less as they are, we will grow from 7 billion plus today to number 12 billion people by the end of this century, according to a semi-terrifying new model of population growth just published in the Proceedings of the National Academy of Sciences." Also, a requiem for some long-gone word processing software, and more on sex ratios in lab animals.
November 1, 2014
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