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Decreases in ozone were noted as early as 1978-79, associated with the ozone hole (identified in 1984).

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15y ago
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6mo ago

The depletion of the ozone layer was first discovered in the late 1970s and was primarily linked to the use of man-made chemicals called chlorofluorocarbons (CFCs). This led to the landmark Montreal Protocol in 1987, an international agreement to phase out the production and use of ozone-depleting substances.

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8y ago

In Antarctica, not South America.

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12y ago

farman, brian gardiner, jonathan shanklin

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Q: When was it first discovered that the ozone was depleting?
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Related questions

When was the year when you discovered the ozone layer disappearing?

Scientists first discovered the thinning of the ozone layer over Antarctica in the 1980s, leading to the landmark Montreal Protocol in 1987 aimed at phasing out ozone-depleting substances.


What is an ozone-depleting chemical that is not a chlorofluorocarbon?

Ozone depleting chemicals are CFC's. Other than Halogens are also ozone depleting.


What level of the ozone is depleting?

The ozone is depleting at stratospheric level. It is due to CFC's.


Ozone-depleting chemicals has become known as?

The ozone depleting chemicals are CFC's. They react with ozone and deplete it.


What are ozone depleting substances and how they work?

The ozone depleting substances are the ones that deplete the ozone. They work by decomposing the ozone into its original constituents.


What is the ozone depleting substances?

There are many ozone depleting substances. These substances are the ones that can cause damage to the ozone layer.


What is an ozone depleting substance ods-?

Ozone depleting substances cause damage to the ozone layer. CFC's are greatest of them.


What is ozone depleting substance?

There are many ozone depleting substances. These substances are the ones that can cause damage to the ozone layer.


Where are ozone depleting substances used on ship?

The ozone depleting substances are the one that react with ozone and deplete it. They are used as refrigerants on ships.


When was the ozone first discovered?

The ozone was first discovered in late 1800's. This led to discovery of ozone hole.


What materials are depleting your ozone layer?

Materials depleting ozone are called ODS. They are CFC's and greenhouse gases.


Which protective gas is depleting?

Ozone is depleting. It is depleting due to the CFC's used by the humans.