Likely Link Between Pollution and Human Reproductive Issues

The claim went viral in spring 2021, after the publication of environmental scientist Shanna Swan’s book Count Down: How Our Modern World Is Threatening Sperm Counts, Altering Male and Female Reproductive Development, and Imperiling the Future of the Human Race, in which she says that pollution is causing an “existential crisis” for human fertility rates and that male infants are being born with smaller genitals.