Pollution problem leads to smaller penises

Human penises are shrinking because of pollution, a scientist has warned.

Dr. Shanna Swan has warned in her new book that humanity faces an "existential crisis" in fertility rates as a result of phthalates, a chemical used when manufacturing plastics that has an adverse impact on the hormone-producing endocrine system.

Dr. Swan claims in her book 'Count Down' that as a result of pollution, a growing number of babies are being born with small penises.

Her research began by examining phthalate syndrome, which was observed in rats and found that fetuses exposed to the chemical were likely to be born with shrunken genitals.

Dr. Swan then discovered that male human babies who had been exposed to the phthalates had a shorter anogenital distance - something that correlated with penile volume.