WHAT! There was a land bridge between Russia and Alaska? Could it have been in the vicinity of the Aleutians? Kind of like there used to be a vast inland sea here in NV. Odd huh? Things change and humans had NOTHING to do with it. How can that be? Change is inevitable as long as there are SUVs.
from reports here on Free Republic, I have concluded that the enlargement of the ozone hole is a function of the enlarging of the ice caps
the warming function of climate change produced an updraft enlarging the hole while sucking in cold air at ground level. That is, increased global CO2 yields decrease high atmospheric ozone via a complex convection process.