Why Action on ‘Forever Chemicals’ Is Taking So Long

What do you do about lab-made chemicals that are in 99% of people in the U.S. and have been linked to immune system problems and cancer? Whose bonds are so stable that they’re often called “forever chemicals“? Meet PFAS, a class of chemicals that some scientists call the next PCB or DDT. For consumers, they are best known in products like Scotchgard and Teflon.