H.I. #19,
I gave you a link to the data graph that clearly shows that there was no ozone hole 1967-71. It was there in 1986. It got steadily worse, bottoming out in 1993. It pretty much stayed there until 2006, when it began to ease up some, although it's still there big-time, as shown by the data collected. Data source: Earth System Research Lab website.
Poking around on your Cambridge Centre for Atmospheric Science, I found this very interesting link:
http://www.atm.ch.cam.ac.uk/images/easoe/total_ozone.gifIt charts the lack of an ozone hole back to 1956! Then it shows the steady drop charted by the data from my link. The interesting thing for me was to find out that the ozone hole wasn't really noticed until 1980, then they started looking backward and found that indeed, the hole did not exist in earlier year data. That's science at its best in my book.
So thanks for helping me make my point.
