[Santiago = mythology / Xinhua / newsis] according to the survey, reporter Park Xiang Zhou = the ozone hole over the Antarctic is twice or 10 million kilometers larger than usual.

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

Loulcorrororo, a scientist at the Institute of Antarctica, Chile, said: "the reason for the large ozone hole may be that the temperature in the sex layer has dropped" and "there is no need to look at the trend change". According to the survey, the reduction of ozone layer is very prominent in the high altitude areas in spring. According to the Paris Pact recently selected by the UN climate change Association in Paris, scientists participating in the analysis said that they expect to restore the ozone layer in the middle of the 21st century based on the reduction of carbon emissions.

Previously, on October 29, the World Meteorological Organization (WMO) reported that the ozone hole over Antarctica reached 28.2 million square kilometers on October 2, citing NASA data. On September 9, 2000, the largest area in history was 29.9 million square kilometers, and the ozone hole became larger.

The ozone layer around the earth, which is 25 kilometers away from 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 cold plum and other chemicals.

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