Alan Gregg? William Ralph Inge? Paul R. Ehrlich? Marston Bates? Edward Abbey? Ronald Dellums?
Question for Quote Investigator: The size of the human population and the power of human technology have both grown dramatically during the past century. Unfortunately, the biosphere has been damaged by human actions. Someone formulated the following provocative analogy:
The world has cancer, and the cancer cell is man.
Would you please explore the provenance of this saying?
Reply from Quote Investigator: The earliest close match found by QI appeared in the journal “Science” in 1955 within an article by physician Alan Gregg titled “A Medical Aspect of the Population Problem”. Gregg’s phrasing was tentative. Boldface added to excerpts by QI:1
In short, I suggest, as a way of looking at the population problem, that there are some interesting analogies between the growth of the human population of the world and the increase of cells observable in neoplasms: To say that the world has cancer, and that the cancer cell is man, has neither experimental proof nor the validation of predictive accuracy; but I see no reason that instantly forbids such a speculation.
Gregg pointed out that the human population had increased dramatically from 500 million people in A.D. 1500 to 2 billion people in 1955.
Below are additional selected citations in chronological order.
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