Hello butterfly effect .Am going to discuss about ozone depletion .Ozone depletion describes two related events observed. Ozone in earth’s atmosphere is much larger springtime decreases in stratospheric ozone .This ends up forming ozone hole. Ozone hole and depletion is caused by manufactured chemicals like halocarbon refrigerants and blowing agents but note there are  others more .But let’s discuss only this examples .Substances that led to ozone hole and depletion are referred to as depleting substances .Ozone depletion and ozone hole have generated worldwide concern over increased cancer risks and other very seriously negative effect towards our health .As you all know ozone acts an important role in earth which is it prevents most harmful u.v.b wavelengths from passing through the earth atmosphere  


Very comfortably let’s look at three forms of oxygen which are involved in   ozone oxygen cycle. These are

  1.      oxygen gas
  2.      oxygen atom
  3.      ozone gas

then when oxygen molecules[uv] photons ozone layer is formed when atomic oxygen radicals then combine with oxygen molecules to carbon {iv}oxide molecules an oxygen atom >it join up with oxygen molecules to regenerate ozone  .this is continuous process .

A balance between photochemical production and recombination is the total amount of ozone .can you think about life here on earth without ozone layer .can we survive?

Have enjoyable time when reading.



Original Post

Hi Mary!

I actually do not know much about ozone depletion, so it was nice to learn something new from your post! I also think your question asking if we could survive without an ozone layer is very intriguing! Maybe you could do some research on how our world would look like if we didn't have an ozone layer? 

Here are some potential sources:


Great job!

hello Mary,

This is a great topic to look into, the approach is supper. while researching on the ozone layer depletion,causes and effects ,could you also look into the solutions to its depletion.

The Ozone layer is a deep blanket in the stratosphere ,that covers us from the harmful uv (b) rays, which can cause skin cancer and cataracts in humans and harm animals as well.

How is Earth's atmosphere losing its most important layer? Chlorofluorocarbons (CFCs), chemicals found mainly in spray aerosols heavily used by industrialized nations for much of the past 50 years, are the primary culprits in ozone layer breakdown.

solutions to ozone layer depletion.

depletion does not affect a region or a country. it affects the whole world.the increase in the level of uv rays lead to high rate of skin cancer and eye related problems

this all i got on the topic , i hope it helps in your next research.

all the best




Hi Mary,

Nice research! I don't think many people know a lot of information about the ozone layer and the harmful effects ozone depletion can have on us, but it's an important topic, so it's great that you're doing your research on it and informing others. Some things that I think would be interesting to know is the current state of the ozone layer, what scientists predict it might be like in the future, and what would happen if there was no ozone layer.

Here are some websites you can use:




Keep up the good work!

Hey Mary,

I haven't studied the ozone layer very much, so your post was quite educational for me! I think it would be cool if you related the earth's ozone layer to the situations on other planets and looked at the relations and differences between them. On that note, you could examine why these other planets are uninhabitable (in relations to an ozone layer). 

You could maybe use these websites for your future research:

Keep up the great work! I look forward to reading your next research round,

Hello Mary! 

This topic is very new to me so it was very interesting to learn and read about! I enjoyed how you listed the different forms involved in the ozone oxygen cycle, to further our understanding! Perhaps in your next round of research, you could include what the current state of the ozone is. 

Here are some sources that you might find useful: 



Best of luck!

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