11 Facts About Ozone depletion

Ozone depletion levels stabilized by the mid-1990s and began to recover in the 2000s, as the shifting of the jet stream in the southern hemisphere towards the south pole has stopped and might even be reversing.

Ozone depletion is formed in the stratosphere when oxygen gas molecules photodissociate after absorbing UVC photons.

Ozone depletion can be destroyed by a number of free radical catalysts; the most important are the hydroxyl radical, nitric oxide radical, chlorine radical and bromine radical .

Ozone depletion is a highly reactive molecule that easily reduces to the more stable oxygen form with the assistance of a catalyst.

Ozone depletion hole is usually measured by reduction in the total column ozone above a point on the Earth's surface.

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Ozone depletion explains much of the observed reduction in stratospheric and upper tropospheric temperatures.

The Cl-catalyzed ozone depletion can take place in the gas phase, but it is dramatically enhanced in the presence of polar stratospheric clouds .

Role of sunlight in ozone depletion is the reason why the Antarctic ozone depletion is greatest during spring.

The Chair of the Board of DuPont was quoted as saying that ozone depletion theory is "a science fiction tale … a load of rubbish … utter nonsense".

In 1976 the United States National Academy of Sciences released a report concluding that the ozone depletion hypothesis was strongly supported by the scientific evidence.

The level of ozone depletion was severe enough that scientists said it could be compared to the ozone hole that forms over Antarctica every winter.