Abstract
The controversy over the potential depletion of stratospheric ozone by chlorofluorocarbons has flared up again, following new balloon measurements confirming the presence of chlorofluorocarbons in the stratosphere at heights above 19 km (12 miles). The measurements, conducted by the National Oceanic & Atmospheric Administration, are in close agreement with theoretical predictions by scientists. This finding has triggered another petition by the National Resources Defense Council, this time to the Food & Drug Administration, to ban all food, drug, or cosmetic aerosol products using chlorofluorocarbons as propellants. The petition is cosigned by the states of New York, Michigan, and Oregon. Meanwhile, the National Academy of Sciences has issued an interim report identifying areas where more research is needed to resolve the chlorofluorocarbon/ ozone issue. NOAA's balloon experiments were described at hearings before the House Subcommittee on Environment & Atmosphere, chaired by Rep. George F. Brown Jr. (D...
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