Ozone: Prudent Steps Are Not Hysteria

Regarding Paul Craig Roberts' column "Quietly, now, let's rethink the ozone apocalypse" (Economic Viewpoint, June 19), ozone shields living things from ultraviolet-B (UV-B) radiation, and there is no dispute about the link between UV-B and nonmelanoma skin cancer. Replacement of chlorofluorocarbons (CFCs), long supported by the industries that produce and use these chemicals, is occurring with little or no inconvenience to consumers. Life on Earth's surface depends on a stable ozone layer. The termination of production of CFCs

was a prudent reaction by governments around the world to a looming threat that could have turned into a


Michael Oppenheimer

Senior Scientist

Environmental Defense Fund

New York

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