"Perhaps the most ambiguous of these [technological] achievements [of the industrial age] is the one that began in mid-nineteenth century with improvements in public health, vaccinations, and antibiotics. These methods of death control emerged too rapidly to be offset by methods of birth control and populations exploded. Again, who can speak against this from within the old paradigm? In fact, it is only from the newer ecological paradigm that we are able to recognize that all this marvelous technology has... likely led the human population to overshoot the carrying capacity of the earth. Even from this perspective many of us would... want to save lives now in hopes that somehow there will be enough resources for those who come after us. In less complex animal populations, an overshoot leads to a crash, or die-off. Can humans somehow circumvent this conclusion without relying on further damaging drawdown strategies? … a basic change in our technologies, and acceptance of a steady state in economics reinforced by a compatible spiritual orientation, may at least mitigate human suffering and loss."
January 1, 1970
https://en.wikiquote.org/wiki/Overpopulation