As the folk saying goes, "walk on the ice in three, nine, four, nine." This year's first cold wave has arrived. On the temperature forecast map of the Central Meteorological Observatory, some areas have already frozen to the point of turning purple, with the freezing line directly reaching southern China. Even northern Guangdong will experience snowfall, and some southern regions may even enter a "blizzard mode". On January 21st, the Central Meteorological Observatory issued three warnings for cold waves, blizzards, and strong winds; The Emergency Management Department has launched a Level IV emergency response for low-temperature rain, snow, and freezing disasters in Hunan and Guizhou provinces. At the end of last year, the strongest cold wave on record for the same period is still vividly remembered. What are the characteristics of this current cold wave? Firstly, it has a wide range of impacts and a large cooling range - with most areas experiencing a temperature drop of 6 ℃ to 8 ℃ and some areas reaching 10 ℃ to 14 ℃. Furthermore, the south will experience the largest and strongest snowfall process this year. I didn't go to Erbin, but even when I opened the door, I could see the snow. Snowflakes drift, allowing many southerners to experience the fun of ice and snow on the spot. But unlike the north, which has been tested by heavy snow for a long time, the damp and cold south experiences rain and snow, and the strings of various guarantees need to be tightened. Will icing on power lines interrupt power supply when the weather is cold and the earth is frozen? In Huangni Village, Guanyindong Town, Qianxi City, Guizhou Province, the staff of the power supply bureau are intensifying inspections of the lines under their jurisdiction to promptly eliminate hidden dangers and equipment defects caused by tree obstacles. If rain or snow causes a disaster, will the reserve of warm materials be insufficient? Large and small trucks loaded with cotton quilts and winter clothing have departed from the Hunan Provincial Disaster Preparedness and Reduction Center, and have been shipped to various parts of the province in advance to ensure that people can receive timely and effective assistance in case of disasters. For farmers, the biggest concern is still the harvest in the fields. In the "Most Remembering Little Orange" Garden in Zhong'ao Town, Dazu District, Chongqing, fruit farmers have put on "cold resistant clothing" for over 53000 citrus trees in advance. By bagging the fruits and covering them with film, the resistance of citrus trees to low temperature weather is enhanced. While actively responding to the cold wave, people can't help but ask, "What makes global warming so severe?" Meteorological experts explain that this is because climate change weakens the temperature difference between the Arctic region and the middle and low latitudes, making it difficult to maintain a strong westerly jet, causing the cold air inside the polar vortex to become "restless and restless", making it easier to split southward. The cold air from the Arctic has a much lower temperature than the middle and low latitudes where we live, making everyone feel "frozen". Therefore, the intense cold wave is not contradictory to global warming. In a few days, the annual Spring Festival travel will begin, and everyone wants to ask if the road home is easy to take? At present, departments such as railways, electricity, transportation, and civil aviation are working hard to prepare in advance. No matter how cold it is, the way home always feels warm and cozy. (Lai Xin She)