The ozone layer shows signs of continued recovery from human-induced damage, where it is likely to be completely healed by 2060, according to new evidence.
The self-healing process will have a major impact on climate change caused by increased greenhouse gases in the atmosphere, where global warming can be eliminated in this century, The Guardian reported.
Corrosion and chemical decomposition, especially aerosol, has increased by 14 to 3 percent over a decade since 2000, meaning that the ozone layer over the northern hemisphere should be completely healed by the 1930s, Rates continued at this pace.
In the southern hemisphere and polar regions, healing will be slower at a slower pace, with the ozone layer expected to recover completely by 2060.
The results, presented on Monday in a four-year assessment of ozone layer health, are a rare example that cooperation among nations can repair environmental damage.
Following the first declaration of ozone layer ozone depletion in 1985, the Montreal Protocol was signed in 1987 to oblige signatory States to reduce and eliminate harmful chemicals identified as the cause of the problem.
Success of the Convention
Ozone in the upper layers of the Earth's atmosphere protects most of the harmful ultraviolet rays from the sun.
Without ozone, humans are damaged in the skin and the eye, while evidence already suggests a rise in skin cancers.
"The Montreal Protocol is one of the most successful multilateral conventions in history," said Eric Solheim, head of the UN Environment Department.
"The cautious mix of official science and cooperative action set by the Protocol for more than 30 years for ozone recovery," he said.
The amendment in the Rwandan capital of Kigali in 2016 to the Montreal Protocol, which will enter into force early next year, will help reduce future climate change by targeting HFCs, which are used in refrigerants and have a thermal effect tens of thousands of times higher than the second Carbon monoxide.
Until recently, most of the major sources of ozone-causing gases were believed to have been closed, but studies showing sites in China still emit greenhouse gases from massive industrial activity. The Chinese government has vowed to close these sites.
