Question:
My science teacher is always trying to emphasize the importance of recycling.
At the current rate that society recycles, how much longer will the ozone
layer survive?
Replies:
This is a difficult question to understand. First, we do not know if the
ozone layer is going to disappear. It has certainly attained larger size
holes over the last twenty years or so but this is not known to be a permanent
trend. Second, though man-made chemicals have been shown to have the
potential for causing damage to the ozone layer it is not known that these are
the major cause for changes in the waxing and waning of the ozone hole.
Lastly, some recycling processes may in fact produce more potentially damaging
agents than not. It is most important to do all that one can to recycle.
Many parts of the country do not and this can have the effect of lowering
demand for "garbage" as a raw material further limiting our ability to reuse
waste and to invent new uses. Wear your sunscreen! And have Fun!
NEWTON is an electronic community for Science, Math, and Computer Science K-12 Educators, sponsored and operated by Argonne National Laboratory's Educational Programs, Andrew Skipor, Ph.D., Head of Educational Programs.