Pennsylvania’s attorney general is calling for stronger federal action on plastic pollution. State A-G Michelle Henry is joining attorneys generals from 13 other states in sending a letter to the EPA asking for stricter standards and to reduce society’s reliance on plastic materials. She says microplastics, which are fragments that remain when plastic doesn’t fully degrade, have been found in all Pennsylvania’s waterways where testing has been done. Henry says the microplastics have also been found in food and air samples and even human blood and lung tissue.