E.P.A. Says Catalytic Converter Is Growing Cause of Global Warming By Matthew L. Wald Copyright 1998 The New York Times May 29, 1998 ---------------------------------------------------------------------- ---------- WASHINGTON -- The catalytic converter, an invention that has sharply reduced smog from cars, has now become a significant and growing cause of global warming, according to the Environmental Protection Agency. Hailed as a miracle by Detroit automakers even today, catalytic converters have been reducing smog for 20 years. The converters break down compounds of nitrogen and oxygen from car exhaust that can combine with hydrocarbons, also from cars, and be cooked by sunlight into...