John Holdren. In 1977 he co-wrote the book, Ecoscience. Selected quotes:
"Individual rights must be balanced against the power of the government to control human reproduction."
"Indeed it has been concluded that compulsory population-control laws, even including laws requiring compulsory abortion, could be sustained under the existing Constitution..."
"Illegitimate childbearing could be strongly discouraged. One way to carry out this disapproval might be to insist that all illegitimate babies be put up for adoption--especially those born to minors, who generally are not capable of caring properly for a child alone. If a single mother really wished to keep her baby, she might be obliged to go through adoption proceedings and demonstrate her ability to support and care for it. It would even be possible to require single women to marry or have abortions..."
"A program of sterilizing women after their second or third child...might be easier to implement than trying to sterilize men."
"Adding a sterilant to drinking water or staple foods is a suggestion that seems to horrify people more than most proposals for involuntary fertility control. Indeed, this would pose some very difficult political, legal, and social questions, to say nothing of the technical problems."
"The development of a long-term sterilizing capsule that could be implanted under the skin and removed when pregnancy is desired opens additional possibilities for coercive fertility control. The capsule could be implanted at puberty and might be removable, with official permission, for a limited number of births."
"The United Nations population agencies, might eventually be developed into a Planetary Regime—sort of an international superagency for population, resources, and environment. Such a comprehensive Planetary Regime could control the development, administration, conservation, and distribution of all natural resources..."
"The Planetary Regime might be given responsibility for determining the optimum population for the world..."
"Security might be provided by an armed international organization, a global analogue of a police force. The first step necessarily involves partial surrender of sovereignty to an international organization."
Thomas Malthus was ranting about this stuff in 1798. "All the children who are born, beyond what would be required to keep up the population to a desired level, must necessarily perish..."