This winter can be said to be a very cold winter in recent years. Both northern and southern cities have been attacked by cold air, which has brought great troubles to people's lives. There are even many places where the temperature has broken through, not only in China, but also in Japan, South Korea and Singapore. Japan has been snowing continuously, many water pipes in South Korea have been frozen and cracked, and even Singapore, which is located on the edge of the equator, has been raining continuously to cool down. What is the reason for the frequent occurrence of such extreme weather? The most direct reason is the Arctic sea ice factor.

1. What is the Arctic sea ice factor?

We know that the North Pole is the coldest place, the manufacturing point of cold air, and belongs to the hometown of cold air. In this place of the North Pole, there is a polar vortex over the sky, which plays a great role. Its function is to lock the cold air and prevent it from being released, just like our refrigerator. However, there are many reasons for global warming, and the sea ice area has melted, which has weakened the ability of polar vortex, so it cannot be fixed. The cold air causes the cold air to float with the airflow, so we are very cold this winter.

Secondly, the second cause of this extreme weather is La Nina phenomenon.

Maybe some people should know La Nina phenomenon very well. La Nina phenomenon refers to the abnormal cooling of seawater in the central and eastern Pacific Ocean. It is precisely because of this phenomenon that all parts of the country become very cold. La Nina phenomenon causes the nearby sea water to become super cold. With the further strengthening of the winter monsoon in East Asia, the activities of cold air become very frequent. With the movement of these cold air, the whole country has become cold air, so this winter is really super cold.

Third, in fact, the most direct cause of this extreme weather is global warming.

The weather is getting colder and colder, and many people have an illusion that the warming weather is an illusion. In fact, as a result of global warming, the weather is getting colder and colder. The greenhouse gas carbon dioxide increases too much every year, causing some greenhouse gases to melt many icebergs, leading to lower and lower temperatures. When all the icebergs melt, the world will become hotter and hotter. So protecting the environment is really important.