[dalereed]

Unless they have changed what produces ozone from when I was in school 50 years ago, it's produced by electric spark. it's the acrid smell for 20 minutes or so after a thunderstorm.

I want to know when they are taking these so called measurements.

Since there somewhere around 80,000 lightning strikes daily in the world and most occur durring the winter in the colder climates it only makes sense that the ozone production from high altitude lightning would close the hole durring the winter and it would expand durring the summer.

There is no way that ozone produced in the lower atmosphere could ever make to the ozone layer since it will combine with any matter it comes into contact with and immediatly produce oxygen and an oxide of whatever it comes in contact with. It can only remain O3 in a vacum.

[DrDavid]

High altitude ozone is produced by ultra-violet (UV) sunlight interacting with oxygen molecules. The same UV light that creates ozone destroys ozone. It is the the creation/destruction of ozone that blocks the UV light from reaching the surface.

The angle of Sun light (not margerine) hitting the right layer of atmosphere at the poles is less than at the equator. This would result in less ozone at the poles. We don't have evidence that the ozone hole hasn't been a permanent part of the Earth's atmosphere. Given that it can change size +/- 20% in a year would suggest that it has always been the way we've observered.

[Blue Collar Christian]

"It can only remain O3 in a vacuum."

Then ozone will remain stable in the head of an "environmentalist"?