This year the hole in the ozone layer in Antarctica came to measure 19.6 million km2.
An event that had not happened since 1988.
This year saw the smallest hole in the size of the ozone layer and the weakest since 1988.
According to scientists Paul Newman (NASA) and David Fahey (NOAA), co-chairs of the Scientific Assessment Group of the Montreal Protocol, the cause of this year’s weak ozone hole is mainly due to the climate patterns of the southern hemisphere stratosphere. During September, temperatures in the Antarctic stratosphere were unusually warm. These warm temperatures were in turn caused by strong disturbances of the waves emanating from the troposphere. Warmer temperatures weaken the ozone hole, “Deputy Secretary of the Ozone Secretariat Megumi Seki announced.
This year the ozone hole in the Antarctic has been exceptionally weak, reaching a maximum of 19.6 million km2 on September 11 and decreasing throughout the rest of the month.
This is the smallest area of the hole observed since 1988, according to the Ozone Mapping Profiler Suite (OMPS), the instrument for measuring the ozone layer daily used by NASA and NOAA (National Oceanic and Atmospheric Administration of the United States).
“This is especially encouraging for the scientific community, compared to 2016, when the hole in the ozone layer was 22.4 million km2 and especially in 2006, when the ozone hole in Antarctica reached a record high of 29.6 million square kilometers, with the lowest level of ozone ever recorded, “said Leydi María Suárez, national coordinator of the Ozone Technical Unit of the Ministry of Environment.
Colombia has so far reduced 1,936 tons of ozone-depleting substances that were not released into the atmosphere, has 96 projects approved by the Multilateral Fund of the Montreal Protocol that have contributed US $ 36 million to the country and in 2010 , the country completely eliminated chlorofluorocarbons (CFCs), becoming the first major achievement in meeting the obligations under the Montreal Protocol.
This agreement came into effect in 1989 and is designed to reduce the production and consumption of substances that have been studied that react with the ozone layer, responsible for the depletion of the ozone layer.
The data was announced at the close of the First International Congress for the Management of Substances that Deplete the Ozone Layer and its Contribution to Climate Stability in Bogotá.
Featured Image Credit: NASA
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