2021-06-23

New research shows that climate change is increasing the depletion of ozone in the atmosphere above the Arctic

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New research shows that climate change is increasing ozone depletion in the Arctic. There is a race going on in the atmosphere above the Arctic. If greenhouse gas emissions cannot be reduced quickly, the ozone layer, which protects the earth from destructive ultraviolet (UV) radiation, will lose the race. A new study by an international team of scientists shows that the extremely low winter temperatures in the atmosphere above the Arctic are becoming more frequent and extreme. The study also shows that these extreme low temperatures are causing reactions between chemicals injected into the air by humans decades ago, leading to greater ozone loss.

New research shows that climate change is increasing the depletion of ozone in the atmosphere above the Arctic

The new discovery The hypothesis is questioned, that is, after the global ban on the production of ozone-depleting chemicals called chlorofluorocarbons (CFCs) in 2010, ozone loss will cease in just a few decades. The research was jointly conducted by UMD, the Helmholtz Polar and Marine Research Center of the Alfred-Wegener Institute, and the Finnish Meteorological Institute, and was published in the journal Nature Communications on June 23, 2021.

Researchers said that we are in a race. On the one hand, CFCs are decreasing slowly and steadily. It will take 50 to 100 years to disappear. On the other hand, climate change. As a result, the extreme temperature of the polar vortex rapidly cools down, and the increasingly colder temperatures create conditions that promote the ozone depletion of CFCs. Therefore, although these compounds are slowly disappearing, as the climate changes, ozone depletion in the Arctic is also increasing.

New data from this study show that the Arctic polar vortex will have the lowest temperature and the highest ozone depletion in 2020, surpassing the record set 9 years ago in 2011.