¥Chlorofluorocarbons
(CFCs) disrupt the natural balance of O3 in S.H. stratosphere
¥ CFCs
responsible for the ozone hole over SP!
¥ Responsible
for lesser reductions worldwide.
¥Special
conditions exist in stratosphere over Antarctica that promote ozone
destruction:
¥ Air
trapped inside circumpolar vortex
¥ Cold
temperatures fall to below -85oC