Why is it that the snowy weather in Europe is extremely cold, but China, the most polluted country in the world, does not have this kind of weather?

Nalis, a spokesman for the World Meteorological Organization, told the media in Geneva on the 4th that the cold weather sweeping Europe at present was caused by Siberian high-pressure air mass.

Nalis said that the Siberian high-pressure air mass prevented the warm air from moving westward, which caused the temperature in Europe to plummet. In the past few days, cold air from the north and warm and humid air from the Mediterranean crossed the southeast of Europe, bringing a lot of snowfall to this area.

Nalis pointed out that the current cold weather does not mean that this winter is the coldest in Europe. "If we recall the winter from 2009 to 20 10, we will find that the cold wave came earlier and lasted longer. From 12 in 2009, it runs through 20 10+0 and most of February. "

Nalis said that during the whole period of 65438+February last year and most of the period of 65438+ 10 this year, the overall temperature in Europe was higher than that in previous years. "Therefore, we don't think this cold wave can set a low temperature record. Of course, record low temperatures may occur in some areas, and the specific situation has yet to be confirmed after data collection. "

Some experts of the World Meteorological Organization believe that the severe cold weather in Europe and other regions will last for several days, but how long it will last depends on when the blocking effect caused by high-pressure air mass ends.