Key Points: Ozone Hole
¥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
CFCs
responsible for the ozone hole over SP!Responsible
for lesser reductions worldwide.Air
trapped inside circumpolar vortex Cold
temperatures fall to below -85oC