The ozone hole formed over the Arctic due to low temperatures in the stratosphere will tighten by mid-April, the European Space Agency (ESA) reported on Monday, April 6.
“Since March 14, the ozone column over the Arctic has decreased to what is normally considered the level of the ozone hole, which is less than 220 Dobson (the unit of ozone in the Earth’s atmosphere). We expect the hole to close again in mid-April,” Diego Loyola of the German Aerospace Center DLR said.
In 2018, scientists reported that the Earth’s ozone layer has been recovering by 1-3% per decade since 2000. Experts argue that at this rate, the ozone layer in the northern hemisphere will fully recover by 2030, and the entire planet – by 2060.
It is noted that this result has been achieved thanks to the Montreal Protocol, which prohibits the production of ozone-depleting compounds.
The depletion of the ozone layer was first discovered in the late 1970s. By the beginning of zero, it had stopped, which is also associated with global warming and increased concentrations of carbon dioxide in the atmosphere.