Barry Commoner (1972). "A Bulletin Dialogue: on "The Closing Circle" — Response". Bulletin of the Atomic Scientists: 17–56. “Population control (as distinct from voluntary, self-initiated control of fertility), no matter how disguised, involves some measure of political repression, and would burden the poor nations with the social cost of a situation — overpopulation — which is the current outcome of their previous exploitation, as colonies, by the wealthy nations.”
Maxim Lott. "Eight Botched Environmental Forecasts", FOX News, 30. joulukuuta 2010. Luettu 31. lokakuuta 2010. “"Again, not totally accurate, but I never claimed to predict the future with full accuracy"”
Ehrlich, Paul: When Paul's Said and Done 13 August 2004. Grist Magazine. Arkistoitu 15 November 2004. ”"Some things I predicted have not come to pass."” Viitattu 24. syyskuuta 2015.
Ehrlich, Paul: When Paul's Said and Done 13 August 2004. Grist Magazine. Arkistoitu 15 November 2004. ”"Some things I predicted have not come to pass."” Viitattu 24. syyskuuta 2015.
