Ozone hole is shrinking, a large hole over the Antarctic.

TNew discovery By: My space By: My space

First Ozone depletion was noticed in 1970s and noticed that about 4% of ozone decreased.

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Materials that causes ozone depletion those materials are known as Ozone Depleting Substances (ODS)

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Once these substances reach the stratosphere they release atoms and breakdown ozone (O3) in to oxygen (O2) causes depletion or formation of ozone hole.

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Ozone layer is O3 molecule, made up of three oxygen atoms. This layer is present in stratosphere, between troposhere and mesosphere. It acts as filter of our Earth.

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About 70% of ozone layer reduce over Antarctica, first noticed in 1985. NASA states that ozone layer was weak in 1990s, it is now recovering and it will fully recover by 2070.

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Effects of ozone depletion

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There is no hole there rather than there is ozone depletion over the Antarctic. It is also referred to as a “dramatic thinning” of ozone, shows in (August-October).

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