How was the biggest crack in the ozone layer that protects from the sun’s radiation rays filled?

The largest hole in the ozone layer that protects the planet from the sun’s radiation has been filled, an 11-mile-long crack over the North Pole.

According to the Copernicus Atmospheric Monitoring Service, the crack over the Arctic formed earlier this year and by March had spread 11 miles.

According to experts, ozone depletion over the Arctic is a normal occurrence, but this one was the largest ever recorded, and it disappeared almost as quickly as it formed.

The monitoring service said the crack was caused by the polar vortex. In this process, during the winter, the high current waves start to rotate in the form of wide eddies, after which the cold winds of the snowy region also take the form of eddies.

Then, when the temperature drops too low, clouds form that release ozone-depleting chemicals.

Earlier, due to the reduction in air pollution during the lockdown due to the corona virus, the cracks in the ozone began to fill up and the recent deterioration of the cracks is also being linked to this, but experts have rejected this idea.

According to him, just as the weather in the above-mentioned part of the Arctic became unusually cold due to the polar vortex, this cooling also decreased, after which the ozone layer was filled by the reaction of various gases.

In 1987, more than 150 countries under the supervision of the United Nations signed an agreement called the Montreal Protocol to protect the ozone layer.

The treaty committed to reducing the use of ozone-depleting gases, now 99 percent of the treaty’s goals have been achieved three decades later.

The unprecedented 2020 northern hemisphere #OzoneHole has come to an end. The #PolarVortex split, allowing #ozone-rich air into the Arctic, closely matching last week’s forecast from the #CopernicusAtmosphere Monitoring Service.

More on the NH Ozone hole➡️https://t.co/Nf6AfjaYRi pic.twitter.com/qVPu70ycn4

— Copernicus ECMWF (@CopernicusECMWF) April 23, 2020