Why is the ozone hole called a hole when it just contains less ozone than the rest of the ozone layer?

Short answer: It is called a hole, because stars that were not visible with short exposure UV film, become visible through the atmosphere near that pole More detail The amount of ozone in the "ozone hole" is inadequate to protect life from UV-B from any object that might hover over the hole and radiate it down. Thankfully, the Sun makes ozone where it shines, so the "ozone hole" forms where the Sun does not shine UV-C from the Sun makes ozone, and when it is winter at the poles, there is no sunlight. Ozone naturally decays with time and temperature, so the concentration of ozone along any vertical path decreases with each passing day until sunlight returns The size of the "ozone hole", and the duration of how early it forms and how long it takes to heal is assumed to be an indication of overall ozone layer health See the questions below for more detail If you dig a hole in the back yard, why is it called a hole when it only contains less dirt than the areas around it?

Calling an "ozone hole" a "hole", establishes a common language for discussion based on knowledge. Note that the ozone concentration in a polar region experiencing winter (aka. An ozone hole) decreases when sunlight first reaches it... before increasing again over successive days.It does this, because contaminants that are photoactivated by less than UV-C are energized, while the ozone-production mechanism requires UV-C that will not reach that area until later days Contrarian position Ozone requires energy to exist.

Without direct sunlight we find our ozone layer slows breaks down. That is why we see a thinning (called the hole, but it is not really a hole) of this layer when the sun fails to reach the ozone layer due to the earth's tilt. The actual thin area is there only briefly each year Sunspot activity seems to have a very dominant roll in the size of this thin layer.

The sun flares of 1859 seem to have had the greatest impact on this layer that we have seen to date Some people believe that CFC's contribute to this hole. They believe that significant amounts of CFC's get 15 miles onto the air, despite being heavier then air and react with the ozone layer. There is some science behind this, but far more hype Calling the thin layer a hole shows just how politically motivated this group is.

I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.