According to researchers, the ozone layer will take many years to completely heal after it has suffered many damages from chlorofluorocarbons and other harmful compounds. Researchers are worried over a large hole that is forming every year over Antarctica.

Montreal Protocol imposed a ban on such compounds in 1989, but despite that the ozone layer has not been able to recover completely. There is very less likelihood of the ozone layer to recover completely in quick time.

According to Anne Douglass, Natalya Kramarova, and Susan Strahan of NASA's Goddard Space Flight Center, it will take until around 2070 to seek full recovery in the ozone layer.

The researchers presented their study at the American Geophysical Union's annual meeting in San Francisco.

The ozone layer is present in the earth's atmosphere and plays a key role in protecting the earth from the sun's ultraviolet rays.

According to reports of the BBC, scientists were befuddled that why the hole in the ozone layer over Antarctica has been seeking considerable changes in size every year.

After the ban on chlorofluorocarbons was introduced, the hole stopped getting bigger, but the complete recovery has not been attained yet. As a result of the hole in the ozone not being recovered completely yet, ultraviolet rays from the Sun are still streaming through.