Is "Spermagedon" coming? Well, the results of a new study on men's fertility and testosterone levels has left experts concerned as male sperm counts plunge.

Many experts suspect the drop is driven by a cocktail of air pollution, microplastics and other hormone-disrupting toxins, including PFAS or “forever chemicals” in the environment.

Today, science writer Angus Dalton on this new study and whether male fertility is at serious risk.