“The present vast overpopulation, now far beyond the world carrying capacity, cannot be answered by future reductions in the birth rate due to contraception, sterilization and abortion, but must be met in the present by the reduction of numbers presently existing. This must be done by whatever means necessary.” — Initiative for the United Nations ECO-92 EARTH CHARTER
“Childbearing [should be] a punishable crime against society, unless the parents hold a government license … All potential parents [should be] required to use contraceptive chemicals, the government issuing antidotes to citizens chosen for childbearing.” -David Brower, first Executive Director of the Sierra Club