The ozone layer, which protects the world from ultraviolet rays, is recovering from man-made damage according to a new report by the United Nations.
Experts predict that the layer on the Northern Hemisphere could be completely repaired by the 2030s, and that the hole on the Antarctic would be destroyed in the 2060s.
The report comes out 30 years after the signing of the Montreal Protocol, which eliminates chlorofluorocarbons (CFCs) and other ozone depleting substances.
The Huffington Post stated that "a rare part of the good news about the environment – and proof of what global action can be achieved."
How was it?
The thinning of the world's protective shield was first seen in the 1970s. According to Nasa, at the end of the 1990s, in the worst case, about 10% of the upper ozone layer was consumed.
In the UN report, a global commitment to eradicating the use of CFCs in aerosols and refrigerants since 2008 has shown that ozone increases by 1 to 2% per annum.
Iyi Really good news, haber said Paul Newman, co-president of the study, chief scientist scientist at NASA's Goddard Space Flight Center. Ürüz If ozone-depleting substances continue to increase, we see great effects. We stopped it. "
The Montreal Protocol, one of the most successful multilateral agreements in history, is known to prevent two million skin cancer cases by 2030 each year.
However, according to Brian Toon of the University of Colorado, which is not part of the study, it is not yet a complete success. Or We're just at a point where recovery is beginning, pointing to some areas of ozone that haven't been repaired yet,, he told the Associated Press.
Another problem, he said, is an increase in the emissions of CFCs banned from countries in East Asia.
Newman still admits there are things to do. A I don't think we can make a victory tour until 2060, “he said. “That's what our grandkids should do.“