CBS Evening News for Monday, Sep 13, 1976
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(Studio) National Academy of Sciences says fluorocarbons used in aerosol products weaken ozone, protective layer of earth's atmosphere. Says many spray products probably will have to be banned or regulated, but more study needed. DuPont, largest manufacturer of fluorocarbons,and aerosol industry praise academy's call for delay in regulation.
REPORTER: Walter Cronkite
(DC) Purpose of ozone layer noted; sun's ultraviolet rays can cause skin cancer and if more come through health risks increase Academy recommends delay in banning fluorocarbons to give scientists more time to assess environmental risks. [Ozone committee chairperson Dr. John TUKEY - says costs of delay small; fraction of percent of ozone depletion will be caused in 2 years delay.] Tukey says people should always avoid overexposure to sun and seek medical attention for suspect skin sores. [TUKEY - says hazard of overexposure always there, but increase in it can be prevented.] Since US produces 1/2 of fluoro- carbons reaching ozone, government decision will attack 1/2 of problem.
REPORTER: Nelson Benton
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