Can someone explain how those heavier-than-air CFC's got past the tropopause into the middle stratosphere? It's not like there's a lot of deep thermal convection at the poles.
Folks, the ozone hole is a natural phenomena. You need sunlight to make ozone, and gee whiz, there's none at the poles six months a year. It's not as if the ozone is protecting anything anyway. A day's exposure to UV radiation at the poles is the equivalent to a few minutes in the tropics.
Can someone explain how those heavier-than-air CFC's got past the tropopause into the middle stratosphere? It's not like there's a lot of deep thermal convection at the poles.
Folks, the ozone hole is a natural phenomena. You need sunlight to make ozone, and gee whiz, there's none at the poles six months a year. It's not as if the ozone is protecting anything anyway. A day's exposure to UV radiation at the poles is the equivalent to a few minutes in the tropics.
giacomocj 3 years ago