Earth’s protective ozone layer suffered the consequences of man-made climate change, but it is finally recovering. According to a new United Nations report, the ozone layer is healing from the damage caused by aerosol sprays and coolants. The question now is how long it will take until it’s back to normal.
The ozone layer has been depleting since the late 1970s. Since then, scientists urged officials to raise the alarm and ban ozone-depleting chemicals as soon as possible. As a result of these urgent actions, the upper ozone layer above the Northern Hemisphere should be completely repaired by 2030, while the huge Antarctic ozone hole is expected to close in 2060, according to a scientific report released on Monday at a conference in Quito, Ecuador. The report indicates that the Southern Hemisphere lags slightly behind, so the ozone layer above that part of the Earth should be closed by mid-century.
“It’s really good news,” report co-chairman Paul Newman, chief Earth scientist at NASA’s Goddard Space Flight Center, told the Associated Press. “If ozone-depleting substances had continued to increase, we would have seen huge effects. We stopped that.”
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Earth’s protective ozone layer protects us from ultraviolet rays w