Penises are shrinking and genitals becoming malformed because of pollution, an environmental scientist has warned in a new book detailing the challenges facing human reproduction.
As a result of this pollution, a growing number of babies are being born with small penises, Dr Swan writes.
Her book, titled Count Down, examines "how our modern world is threatening sperm counts, altering male and female reproductive development, and imperilling the future of the human race".
She discovered that male human babies who had been exposed to the phthalates in the womb had a shorter anogenital distance - something that correlated with penile volume.
The chemical has an industrial use in making plastics more flexible, but Dr Swan says it is being transmitted into toys and foods and subsequently harms human development.
Image: Men may be mostly infertile by 2045, Dr Swan warns.
Dr Swan believes that the rapidly decreasing fertility rate means that most men will be unable to produce viable sperm by 2045. »
