In late March, a hole was found in the ozone over the North Pole. The ozone layer protects the earth from the sun’s ultraviolet radiation, which causes skin cancer. The big gap has closed in recent days.
But the hole has nothing to do with the lockdown that is part of the fight against Covidin or the lack of air pollution. Instead, the ozone rupture and changes are caused by the polar vortex phenomenon, which brings cold air to the polar region.
Most ozone depletion takes place where the air temperature drops below minus 42 degrees. This is why the ozone rupture first appears above the South Pole. The temperature at the South Pole is minus 62 degrees. However, the polar vortex phenomenon in the North Pole has led to a decrease in temperature and an ozone depletion.
Temperatures in the poles are typically about 20 degrees higher than when the polar vortex is experienced. This year, the Polar Vortex was so strong that it was getting colder. This leads to strong ozone depletion. Ozone depletion occurs most strongly when the temperature drops below minus 42 degrees. But as the polar vortex weakens over the past few days, ozone depletion and holes are piling up.
The first ozone hole was discovered at the North Pole in January 2011. But it was small.