[Santiago = Myth / new city] Park Shangzhu reporter = according to the survey, the ozone hole over Antarctica is twice larger than that observed at ordinary times, reaching the scale of 10 million square kilometers.

Scientists from the University of Santiago and the Chilean Institute of Antarctica said they found the expansion of the ozone hole when they analyzed satellite data on the 29th (local time).

"The reason why the ozone hole becomes larger is because of the lower temperature in the stratosphere," said Raoul Khodro, a scientist at the Institute of Antarctica in Chile. According to the survey, the reduction of the ozone layer is particularly prominent in the high altitude areas in spring. According to the Paris agreement recently adopted by the conference of the parties to the UN climate change agreement in Paris, carbon emissions have been reduced and it is hoped that the ozone layer will be restored in the middle of the 21st century, the scientists participating in the analysis said.

Earlier, a report released on October 29 by the World Meteorological Organization (WMO) citing NASA data showed that the ozone hole over Antarctica reached 28.2 million square kilometers on October 2. On September 9, 2000, to the largest 29.9 million square kilometers in history, the ozone hole became larger.

Around 25 kilometers in the stratosphere above the earth, the ozone layer around the earth acts as a barrier to harmful ultraviolet rays. The stratospheric ozone layer has become thinner since the 1970s due to the increased use of refrigerant.

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