Walter F. Schoen (Voice, Oct. 19) complains that environmentalists are supporting contradictory positions, both for and against ozone-level reduction.
Let us restate the facts: Ozone (a short-lived oxygen molecule of three atoms) occurs naturally in the upper atmosphere. We and all life are adapted to its effect of limiting ultraviolet light. CFCs, such as Freon, interfere with its formation. CFCs are slow to dissipate and upper-atmosphere ozone depletion will persist for some time without added CFCs.
Ozone at ground level is formed by sunlight acting on combustion products. It does not occur naturally in large amounts and we are not equipped to breathe it.
All of us have an obligation to learn how the world works. If we only read headlines, our opinions will be worth little. To be fair, the Tribune, in the Oct. 11 issue, did not explicitly remind readers of the distinction between local and high-altitude ozone, but ozone in its two roles has been in the news for years now.
I’m sure Mr. Schoen enjoys a sunny day and clean air. Is it too much to ask that there be clean air and a healthy atmosphere for our children?
