Shanna Swan is a scientist who has spent decades chasing a mystery: why global sperm counts have seemingly dropped significantly since the 1930s. At its heart, this story is simply a brilliant yarn. It has got all the elements of a Hollywood movie: this heroic dog-with-a-bone scientist, recalcitrant big business in the role of the baddie, and the looming threat of a global fertility crisis caused by harmful chemicals in everyday plastics such as baby bottles, garden hoses, andthat Tupperware you use to heat up your lunch.You can also find this story in FT Edit, an iPhone app that gives you a taste of the very best of FT journalism. After a month’s free trial, it is 99p or 99 cents a month for the next six months. Try it out if you want the best global politics, analysis and opinion pieces.Learn more about FT Edit. Hosted on Acast. See acast.com/privacy for more information.