Earth Finally Fixed Largest Ozone Layer Hole Above Arctic, Healing 1 Million Square Km
Earth has several ways of healing itself from any
detrimental change, with or without the current COVID-19 lockdown going around
the world.
A new example of this has just been recorded as scientists
confirm that the 1 million square kilometre wide hole over the Arctic has now
closed.
A rare hole in the ozone layer, spreading over 1 million
square kilometre in area, was discovered by scientists earlier this month. The
hole was understood to be a result of low temperatures at the north pole. Had
the record-breaking hole managed to move south with the air currents, it would
have posed a direct threat to humans.
Copernicus' Atmosphere Monitoring Service (CAMS) and
Copernicus Climate Change Service (C3S), implemented on behalf of the European
Commission, have now confirmed that the hole over the north pole has healed
itself. A recent tweet by the agency also explains the reasons behind the same.
Note that the healing of the hole in the Earth’s ozone layer
has nothing to do with the ongoing reduction in pollution due to COVID-19
lockdown. Instead, it is because of the polar vortex - high-altitude currents
bringing cold air to the polar regions.
Copernicus ECMWF explains that the polar vortex experienced
this year was extremely powerful, with very cold temperatures inside it. This
further resulted in the generation of stratospheric clouds that destroyed the
ozone layer by reacting with CFC gases. Note that the use of CFC gases by
humans was banned by the 1987 Montreal Protocol.
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