SEVERAL CALIFORNIA CITIES, including Los Angeles, Berkeley, Florence, Santa Monica, and Venice, plus Yosemite National Park, are putting restrictions on the use of Styrofoam. The resilient packaging plastic is neither biodegradable nor photodegradable so it makes enduring litter whether abandoned or buried in solid waste disposal dumps. Worse, ozone-depleting chlorofluorocarbons are often used in its manufacture. (At press time E.I.DuPont de Nemours & Co., the world’s largest manufacturer of CFC’s, has decided to totally phase out its use of the hazardous chemical. McDonald’s, a major user, plans a chain-wide switch to CFC-free foam packaging by year’s [1988] end.)
