In an optimistic breakthrough, the researchers at Massachusetts Institute of Technology and the University of Leeds have discovered that the Ozone layer above Antarctica is healing and the decreasing level of chlorofluorocarbon (CFC) has played a big role in the healing process.
“We as a planet have avoided what would have been an environmental catastrophe,” Susan Solomon, an atmospheric scientist at the Massachusetts Institute of Technology in Cambridge, and a pioneer in the field of Antarctic ozone loss, said. “Yay us!”
For years the Ozone layer has been bearing the brunt of human’s technological innovations. The obliteration of ozone by the attendance of molecules containing chlorine and bromine that came from chlorofluorocarbons (CFCs) not only augmented the risk of skin cancer in humans but also affected the climate, plants, economy, bio-geochemical cycles , marine ecosystems, and more or less everything that would shield the earth from the harmful ultraviolet (UV) rays.
After the humans realized that enough damage has been made to the Ozone, quite a lot of efforts were made to protect it by phasing out the making of numerous substances that are accountable for its depletion. Global rules were installed to prevent the consumption and production of HCFCs.
The ozone hole above Antarctica is on the mend as it shriveled by 4.5 million squares in September, on average, between 2000 and 2015. However, it will take decades for the hole to heal completely.