It's so cold in the northeast during the Spring Festival.

In the extreme snow and ice weather in Changchun this year, some trees were crushed by snowfall and freezing rain, and some even smashed doors with hammers. The weather is particularly cold this year, which may be affected by La Nina phenomenon.

A popular saying recently? You wear mink in the north and I leak in the south? . It can be described how abnormal the weather is in 2020 this year. We are still wearing short sleeves in the south, but our friends in the north keep snowing.

When we study geography in middle school, we often hear the teacher say two nouns, one is? El Nino phenomenon? , one is? La Nina phenomenon? . Both are descriptions of abnormal weather. El Nino generally raises the temperature, while La Nina is the opposite of El Nino, that is, extremely cold. La Nina usually appears in the year after El Nino. La Nina phenomenon refers to the cold water phenomenon in which the sea surface temperature in the equatorial, Middle East and Pacific Ocean is unusually cold in a large range, and its intensity and duration reach certain conditions. What is 20 19? El Nino? Judging from the temperature in the north now, what should it be this year? La Nina? A few years.

From the news, we can know that the United States will be seriously affected, but the recent severe cold and heavy rain in Changchun and Heilongjiang in northern China can also be seen that La Nina is already affecting our country, but it is still difficult to judge whether it will continue to be so cold. After all, the general trend of global warming will not change. It is possible that the current cold is only short-lived, and it is also possible that this winter will turn into a warm winter. After all, judging from the current phenomenon, although it is raining heavily in Changchun, the south is still dry and hot. Recently, the weather is extremely sultry, and some areas even reach 32 degrees.

Whether it is warm winter or cold winter this year, we should be prepared for these abnormal weather. In addition, due to the impact of the COVID-19 epidemic, we must keep warm and keep warm, and replenish more water to prevent colds.