Ozone depletion?

Question

Is Oxone depletion cyclic or not? Has the ozone levels gotten higher and then dropped many times in history? Have any sources?

it is for my science fair project

Answer 1

To say that ozone levels have fluctuated over history would be akin to hazarding a guess as to the actual time that man emerged in the picture of the earth. However, it is safe to say though that the acts of man has seen to a real damage being effected on this fragile layer above the earths atmosphere.

The naivete of man during the industrial revolution and the technological rebirth of the modern era saw to a disregard for the health of the earth, thus the expansion of hole in the ozone. Thankfully however, it is of note that governments and global agencies are beginning to see the sense in ensuring that we still remain all snuggled up within the confines of the ozone blanket.

The ozone is currently going through a time that would see it's wounds being healed, that is if world leaders are determined to keep to the tenets of quite a few treaties and conventions.

Even if the ozone had been depleted sometime ago in the past, I dare say that I do not expect it to get much worse than the way it is now...

Answer 2

Life has existed on this planet for the past several billion years. Up until recently, life was completely ignorant to the existence of ozone level. Then we find it exists, and discover it has a hole in it over Antarctica. People, please understand that the ozone level has always been there, and that we have no idea if the hole in the ozone level hasn't always been there as well.

One of the laws of physics is that elements will move from an area of greater concentration to an area of lesser concentration. Remember your high school chemistry class?

With that logic in mind, 1 of 3 occurrences should happen.
1, the hole should not even exist and the entire ozone level will shrink until it completely disappears, which it hasn't.
2, the level will shrink and start developing holes all over the planet, which is not happening.
3, there should be a corresponding hole over the Arctic circle, which there is not.

So, since none of the logical occurrences is happening, then the only logical answer is that it is a natural part of the ozone level and probably was always there.

Answer 3

The holes in the ozone layer is a natural phenomenon . The ozone layer is formed when the solar winds and the earth's magnetic field collide . It has nothing to do with CFC or any thing we could do. The holes are occurring at the poles,how many people do u think that will affect. Don't live in such fear.

Answer 4

Difficult to answer this as measurements have only been taken relatively recently so data goes back only around 30 years I think.

The ozone hole has oscillated in size but is demonstrably smaller than when it was first measured. I think ozone levels in the Antarctic have dropped by something like 33% since 1975.

The attached link will give you more.

Answer 5

Based upon my own knowledge and this is theory only, the population is growing and we are cutting more trees down for resources especially in Georgia.
Then Christmas comes every year and more trees cut down.

The cycle of the earth may depend on what those trees put out and if we deplete them, were causing damage not just to envrionment, but to the earth as well.
Tree cutting is bad/

SAVE THE TREES

Answer 6

it would be very hard to increase the ozone. we would have to shoot particles up there. for the most part , it is being depleated at almost a constant rate dur to CO2 and CFCs.

Answer 7

Dnt worry.
its all imagination.