Since the beginning of this year, extreme weather and climate events have occurred frequently in Shaanxi. What is the reason?

Introduction: Extreme weather occurred frequently in Shaanxi this year, not only in Shaanxi, but also in Henan in September and 10 in Shanxi. It seems that the weather all over the world has begun to change greatly, and extreme weather has obviously begun to increase. Extreme weather generally refers to a sudden weather anomaly at a certain point. Under normal circumstances, the probability of occurrence is less than 10%, but the experience is stronger than before. Bian Xiao believes that the frequent occurrence of extreme weather and climate may be due to the influence of signs of human activities. The expectation of greenhouse gases in the atmosphere has led to global warming and great changes in climate, which has caused weather anomalies such as high temperature, rainfall and storms in many areas. The change of extreme weather has brought serious influence on people's life and production, so we must strengthen our prevention.

1. What are the extreme weather?

In July, 20021year, Henan suffered a once-in-a-thousand-year flood. 18 July, the precipitation near the West Lake 150 poured into Zhengzhou within an hour, and then the precipitation in Hebi and Xinxiang near Zhengzhou reached more than 900 mm. This disaster directly caused 302 deaths and nearly 50 people were missing, and the economic loss in Zhengzhou, Henan Province was as high as hundreds of billions. In June this year, a rare high temperature hit most parts of the North Pacific, which directly caused hundreds of deaths. The temperature in some areas is as high as 47 degrees and 8 degrees.

Second, how to save yourself

In the face of extreme weather, it is necessary to forecast first, but it is still difficult to improve meteorological monitoring, and the governance environment in China is very complicated, and it is also difficult to forecast successfully. Although forecasting can reduce the harm, the most important thing is to save energy and reduce emissions and protect the global environment. At present, China has planned to achieve carbon neutrality. In addition, China is making efforts to develop clean energy such as photovoltaic, electric energy and new energy, so as to reduce the demand for coal by photovoltaic and reduce carbon dioxide emissions.

3. What is the impact of global extreme weather changes on China?

At present, the global temperature is accelerating, and extreme weather changes will also cause China's map line to move northward significantly. In fact, this will bring rain to some arid areas, such as northern Shaanxi and Gansu, and alleviate desertification to some extent.