The weather in Beijing on September 6th.

Recently, all parts of the country have been attacked by cold air, so the temperature in all parts of the country has dropped sharply, and the temperature in Beijing has dropped to MINUS 16 degrees Celsius. In this regard, many netizens asked: Isn't it global warming? So why is it so cold this winter? The following small series will answer this question for everyone.

? In winter, temperature fluctuation is closely related to global warming? . Song Lianchun explained: First of all, looking at the surface, the fundamental reason for the low temperature is the middle and high latitudes in Europe and Asia. High in the west and low in the east? Meridional circulation and strong East Asian winter monsoon. And this situation has continued from 65438+February 2020 to the present.

From a deeper perspective, the Pacific Ocean is at the peak of La Nina time, and in September 2020, the Arctic sea ice is abnormally low. From a deeper analysis, the overall trend of global warming has not changed, but the phenomenon of fluctuations in winter temperature has not violated the trend of global warming. The influence of the above monsoon and Arctic sea ice is the main reason for the low temperature this winter. However, they will not change the trend of global warming, but only affect the decline of winter temperature in individual years.

Meteorologists point out that the cold air that causes the temperature drop in winter in China mainly comes from the Arctic, and the polar vortex over the Arctic will keep the cold palace in the Arctic. In addition, the Arctic is the most sensitive region to global climate change. Under the trend of global warming, the arctic sea ice will reach? The second least history? . Therefore, the cold air can't be fixed in the Arctic, and it will go south, causing a large-scale cooling in winter in China.

Because this winter is so cold, I feel bitterly cold as soon as I go out. Bian Xiao tidies up his hat, gloves and masks every time he goes out, so Bian Xiao thinks it is necessary to do a good job of cold protection and warmth to avoid catching a cold.