Today, September 16, marks the international day for the preservation of the ozone layer,
one of the most important events for the United Nations Organization and the 198 signatory
countries, marked by the commitment of Governments to work together to eliminate all
substances that damage the ozone layer (CFCs).
The UN General Assembly selected that day in 1994, in commemoration of the day the Montreal
Protocol on the Elimination of Substances that Deplete the Ozone Layer (ODS) was signed.
Cuba celebrates this day with actions aimed at promoting knowledge about the negative
impact of ODS, particularly on human health.
This 2020 raised the alerts again before the danger in the ozone layer when scientists
reported the largest hole in the Arctic, an unprecedented deterioration due to the
continuous presence of elements that reduce it and a very cold winter in the stratosphere.
Although the event has already closed, specialists warned that at the expected speeds,
ozone in the area and in the mid-latitudes of the northern hemisphere is expected to fully
recover before mid-century, around 2035, and by 2060 in the Antarctic
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