It is said that this winter will be the coldest winter in history. Is it true?/You don't say.

Why is it so cold this winter? Hong Yan, Deputy Secretary-General of the World Meteorological Organization, said that this was largely due to the anomaly of the North Atlantic Oscillation, which made the radial degree of the atmospheric circulation larger, and the north-south airflow was more active than before, bringing the water vapor from the south to the north, while the strong cold air from the north was heading south, and the cold and warm air from the north and the south frequently met. Extreme low temperature weather is closely related to the imbalance between the atmosphere and the ocean system. Hong Yan said that he was not surprised by the cold weather in the northern hemisphere. He said that the severe cold weather first appeared in Europe and then spread to Central Europe, Eastern Europe and Asia, which was in line with the movement law of meteorological system. Yu Fei, a meteorologist from China Meteorological Bureau, further explained that the sudden cooling this winter was due to the anomaly of El Ni? o phenomenon. Winter in the northern hemisphere is controlled by the land cold high pressure. In previous years, the ocean low pressure was near meridian 180 degrees, which led to the positive anomaly of SST. This is a normal El Nino phenomenon. This year, the low pressure of this ocean is closer to the western Pacific, which is about 30 degrees higher than in previous years. Strong low pressure will bring strong weather system. He told this reporter: "Now meteorologists think this is an accidental phenomenon, and it is generally believed that this low pressure will recover at the end of 65438+ 10. At that time, it will be a normal El Ni? o phenomenon, and the north is still warm in winter. " Finally, he said that from the climate point of view, the cold weather is accidental and has nothing to do with the story of the movie 20 12. Moreover, if the earth has entered an ice age or a sub-ice age, it is not only the northern hemisphere that is cooling down, but also the southern hemisphere is experiencing extreme heat.