Around 30 years ago, the world came together to attempt to mend a widening hole in the Earth's ozone layer, which plays a very important role in shielding us from the Sun's ultraviolet rays. A new report compiled by leading environmental agencies has revealed that this long-term healing strategy is continuing to pay dividends, though evidence is emerging that harmful compounds are still slipping through the cracks.
In 2016, MIT researchers reported the "first fingerprints of healing" of the ozone layer over the Antarctic. The latest study, titled "Scientific Assessment of Ozone Depletion: 2018," is backed by the UN, NASA and the World Meteorological Organization, and is the bearer of more good news. It states that upper stratospheric ozone is building at a rate of one to three percent per decade since 2000.
The scientists say these current trends indicate the ozone layer will be completely healed over the polar regions by 2060, while the damage done over the Southern Hemisphere should be completely erased by sometime in the 2050s. The ozone layer over the Northern Hemisphere and mid-latitude regions, meanwhile, is expected to be entirely patched up sometime in the 2030s.