Ozone layer hole will ‘totally heal within 50 years’

Antarctic ozone layer is healing

This combination of images made available by NASA shows areas of low ozone above Antarctica on September 2000, left, and September 2018.

This means that when the hole is totally closed, the Earth's protective ozone layer will actually worsen human-induced climate change, according to the scientists.

Rolando Garcia, a senior scientist at the National Center for Atmospheric Research, told National Geographic that it would have been possible for skin to "literally" burn in just five minutes if an agreement hadn't been met about the ozone layer. Besides dichloromethane, another highly concentrated chemical identified in the stratosphere includes 1,2-dichloroethane - an ozone-depleting substance used to make PVC, a popular construction material. Man-made chemicals like chlorofluorocarbons (CFCs), which release chlorine and bromine, were the first to eat away the layer.

"If ozone-depleting substances had continued to increase, we would have seen huge effects".

"At projected rates, Northern Hemisphere and mid-latitude ozone is scheduled to heal completely by the 2030s followed by the Southern Hemisphere in the 2050s and polar regions by 2060". The Kigali Amendment was passed by delegates from all over the world in 2016.

At its worst in the late 1990s, about 10 percent of the upper ozone layer was depleted, said Newman. This year, the ozone hole over the South Pole totalled almost 25 million square kilometers - 16% smaller than the 2006 peak.

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If nothing had been done to stop the thinning, the world would have destroyed two-thirds of its ozone layer by 2065, Newman said.

However, while most of the banned gases have been phased out, the report found at least one violation of the protocol: an unexpected increase in production and emissions of CFC-11 from eastern Asia since 2012.

Report after report has showed Earth is heading towards disaster, but a new United Nations report shows what even a small change can do to our ozone layer.

It is worth noting the fact that informed other teams of specialists and researchers in the field of ecology of the atmosphere in different ways characterized the degree of recovery of the ozone layer, but in General they were inclined to think that the closer to the thirties of this century the recovery of the ozone layer of the Earth's atmosphere will enter a new phase in which scientists will be able to somewhat speed up the process and contribute to its "healing".

In the meeting, which will last until this Friday, the results of the four-yearly report carried out by the Scientific Evaluation Panel of the worldwide agreement were presented, which leaves the experts in a mood of optimism and hope.

"I don't think we can do a victory lap until 2060", Newman said.

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