The temperature in Beijing has exceeded the historical extreme value in the same period. Why is there such an extreme performance?

After the Spring Festival, the temperature in Beijing began to heat up. Although there was still a chill on the morning of the 20th, the temperature continued to rise in the afternoon, breaking the historical extreme in the same period. Beijing meteorological department reported on the 20th that the weather in Beijing continued to get warmer. The temperature reached 20℃ at the southern suburb observatory 14: 45, exceeding the historical extreme value of the same period in February, and reached 20.8℃ at 15: 50. Warm, bringing a hint of spring. Many people take off their thick cotton-padded clothes and put on light clothes to enjoy the warmth of the street. This year's Spring Festival once made me doubt whether Beijing's spring will return. I like spring in Beijing very much. Just wear two clothes outside.

In 2020, Beijing will enter the spring on March 15, half a month earlier than normal. When the moving average temperature series of five consecutive days is greater than or equal to 10℃, the first day in the corresponding temperature series is taken as the start date of spring. Before spring comes, cold air will stifle the return. With the entanglement of cold and warm air, the temperature in Beijing will be as changeable as a roller coaster. The Beijing Meteorological Department reminded that the temperature in Beijing will gradually drop from 2 1, and the highest temperature will drop to 6℃ from 23rd to 24th, which is more than 10℃ lower than the current level. The temperature changes greatly, so people should pay attention to adjust their clothes in time to avoid catching cold.

The temperature is rising faster and faster, the industry is more and more developed, and more and more trees are cut down, which leads to the air quality is not up to standard. In order to make the air quality more and more up to standard, people began to plant trees on a large scale. In order to reduce carbon dioxide in the air, many people will encourage others to plant trees. We all know that plants will absorb carbon dioxide and reduce the air pollution index. In addition, more natural energy is used by scientists for artificial power generation, saving a lot of materials. Especially now, the application of wind energy is more and more extensive. There are some wind turbines in my hometown, which use electricity and wind power in many fields. These wind power generation devices have brought many benefits to people, for example, people don't have to worry about a series of problems such as power failure.

I believe we all know that there are many kinds of trees in the forest. Especially in some tropical rainforests, the trees there are particularly impressive, but with more and more people entering the rainforest, many trees are now destroyed. People severely cut down trees in forests, and some forests have become deserts. In order to prevent the forest from becoming a desert, people began to plant some plants that are easy to support and have strong vitality, such as cactus and poplar. We need to understand that it is very dangerous for human beings to destroy nature. If a forest is destroyed, it may take hundreds of years to recover, and it may never recover. Forests are good for human beings. Too many plants can make people breathe a better environment and resist some natural disasters such as mudslides.