Outdoor apparel companies have long relied on PFAS, so-called forever chemicals, to make products water-resistant. Retailers only recently started working out how to ditch PFAS in outdoor clothing and gear. Maridav / Alamy Stock Photo read aloud pause X Synthetic substances known as PFAS are in everything from non-stick pans to clothing. But regulation of these widely used but potentially harmful, persistent substances is complex. Swiss professor Martin Scheringer, a leading expert in this field, talks to SWI swissinfo.ch about the challenges of dealing with so-called forever chemicals. This content was published on October 13, 2023 - 09:00 Simon Bradley...