The ozone layer holes above the antartic & north poles letting in the harmful u-v-r's are still there.No one seems to talk about them any more,why not?. It was caused by the C.F.C. gasses escaping from Aerosol Cans & Refridgerators etc.in the 1950s-60s-70s-80s.Thankfully C.F.C.s have been banned worldwide but the depletion in the ozone protective layers haven't abated in any way. Before the current fears over 'global warming' the ozone-layer hole was the major enviromental concern of the 1990s.What is any different today in 2007?. Why has is gone all quiet?.