The recovery of the Earth’s ozone layer has just reached a significant milestone in its road to recovery, and scientists from the National Oceanic and Atmospheric Administration (NOAA) hint at one possible reason.
The ozone layer itself is a region which forms part of Earth’s stratosphere which absorbs most of the Sun’s ultraviolet radiation.
A NASA publication delves deeper into the issue, explaining how without this layer, the intense UV radiation would essentially sterilise Earth’s surface.
During the 20th century, the impact of human emissions severely damaged the barrier and created a massive hole which opened up over Antartica.
Following recent research, the NOAA has found that concentrations of harmful chemicals that damage the layer dropped significantly, almost by 50%, in the stratosphere.
The decline in man-made emissions, coming from hairsprays and cleaning products for example, was the first step towards this healing.
Despite the momentary respite, scientists still highlight that the emissions need to continue declining as issues relating to climate change and global warming are having dire effects on the planet.
Meanwhile, the hole itself is predicted to fully recover by around the year 2070. Until then, the Antarctic hole is being monitored using 3D imaging technology.
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