ENVIRONMENT

DuPont Will Hurry Phaseout of CFC Production: The world’s largest producer of chlorofluorocarbons warned its customers that it planned to accelerate its phaseout of the substance in industrialized countries, to the end of 1994. The United States and other countries had set 1995 as the goal. CFC is a chemical widely used as a refrigerant and in such industrial processes as cleaning computer chips. Its use is being ended because it destroys the atmosphere’s high-level ozone layer, a barrier that protects the Earth from the sun’s damaging ultraviolet rays. DuPont has invested more than $400 million in making CFC alternatives, including refrigerants, foam packaging materials, propellants and cleaning agents.