If present trends in the reduction of ozone-depleting compounds are maintained, the ozone layer of our planet is expected to be fully restored by 2066, according to a report sponsored by the United Nations (UN).
Nearly a hundred compounds, such as chlorofluorocarbons (CFCs) often found in aerosols, were classified as damaging to the health of the ozone layer under the Montreal Protocol, which was adopted globally in 1987.
The protocol's goal was to limit the release of ozone-depleting chemicals into the atmosphere, and every four years, the Scientific Assessment Panel to the Montreal Protocol on Ozone Depleting Substances has released a report on the status of this goal.
According to the most recent assessment, which will be given at the 103rd annual meeting of the American Meteorological Society, we are making progress in rebuilding the ozone layer.
In most of the planet, it is expected to be restored by 2040, over the Arctic by 2045, and over the Antarctic by 2066.
Hydrofluorocarbons (HFCs) are compounds that have been employed as less-harmful-to-ozone substitutes to CFCs, but are still regarded hazardous for the environment, and this advancement was also addressed in the study.
Since its initial discovery, the ozone hole has been steadily decreasing in size. PIC: Vox
Even though these HFCs don't directly contribute to ozone depletion, they do contribute to the global warming problem, hence the Montreal Protocol was revised to also target the reduction of these HFCs, whose usages appear to have steadily decreased over the years.
Estimates suggest that we can avoid a temperature increase of between 0.3 and 0.5 degrees Celsius (0.54 and 0.9 degrees Fahrenheit) by maintaining our current track through the year 2100.
"According to the most recent quadrennial report, the ozone layer is on the road to recovery. It is impossible to overestimate the significance of the Montreal Protocol in the fight against climate change "Executive Secretary of the United Nations Environment Program's Ozone Secretariat Meg Seki remarked.
"The Protocol has evolved into a powerful advocate for the planet over the past 35 years."
Secretary-General of the World Meteorological Organization Professor Petteri Taalas agreed, saying that these improvements should inspire people everywhere to keep striving for better environmental results.
"Climate change prevention begins with ozone protection. The elimination of ozone-depleting chemicals is a good example of what can and must be done to hasten the end of fossil fuel use, lessen emissions of greenhouse gases, and so slow global warming "The man spoke up and explained.