If anyone wants to read some authoritative information on Ozone Depletion, have a look at these sites:
http://www.ciesin.org/TG/OZ/oz-home.html - Click on "Overview"
http://cloud1.arc.nasa.gov/solve/ - Click on "Mission Description"
http://www.nas.nasa.gov/About/Educat...one/ozone.html
This link is off the previous page, and covers the "for" and "against" arguments.
http://www.giss.nasa.gov/research/chemistry/ - NASA's Goddard Institute - Atmospheric Chemistry site.