What is the function of the atmosphere?

The air around the earth is called the atmosphere. Just like fish living in water, we humans live at the bottom of the earth's atmosphere, and we can't live without it for a moment. The atmosphere provides an ideal environment for the reproduction of life on earth and the development of human beings. Its state and changes affect the activities and survival of human beings everywhere. Atmospheric science is the study of the atmosphere. It studies the specific situation of the atmosphere, including its composition, distribution, change and structure.

The movement and change of the atmosphere are caused by the exchange of heat energy in the atmosphere, which mainly comes from the sun. The exchange of heat energy makes the temperature of the atmosphere rise and fall. The movement of air and the change of air pressure system make the energy and material exchange between land, north and south, ground and high altitude. Will produce complex meteorological changes and climate changes. Atmospheric science will deeply study various circulation systems and weather systems in the atmosphere from the aspects of pressure change, pressure field and pressure system formed by uneven pressure distribution, various situations of air movement in various layers of the atmosphere, wind phenomena and properties, and study the essence and phenomena of atmospheric movement based on fluid mechanics and thermodynamics. Weather, as far as phenomena are concerned, is mostly the result of moisture changes in the atmosphere. Under the combined action of solar radiation, underlying surface forcing and atmospheric circulation, the long-term comprehensive situation of weather is called climate. Atmospheric science will study the causes of climate, climate conditions in different regions, climate change and the impact of human activities on climate.

The influence of air pollution on the physical state of the atmosphere is mainly caused by abnormal climate changes. Sometimes this change is obvious, and sometimes it appears in the form of gradual change, which is difficult for ordinary people to perceive. But if left unchecked, the consequences may be very serious. The atmosphere is constantly changing, and its natural change process is quite slow. The change caused by human activities is imminent, which has attracted the attention of the whole world, and a lot of manpower and material resources have been mobilized all over the world.

Atmospheric warming, methane.

According to related reports, researchers of China Academy of Sciences have recently conducted research, testing and experimental analysis on the ice core of the Great Thorpe in the Qinghai-Tibet Plateau by using the self-designed high-precision methane extraction and analysis system, and obtained high-resolution atmospheric methane records in the middle and low latitudes in the past two thousand years, making a breakthrough in the study of the interaction between atmospheric greenhouse gases and global climate change. Through the study of methane records in the Great Thorpe Ice Core on the Qinghai-Tibet Plateau, the researchers found that the methane content in the atmosphere has risen sharply since 1850, and increased by 1.4 times in the past 50 years. However, during the two world wars, methane emissions from human activities showed a negative growth. Experts said that this study will provide a basis for quantitatively evaluating the distribution and change characteristics of the global atmosphere.

Research shows that with the continuous emission of greenhouse gases, the "greenhouse effect" of the earth's atmosphere will become stronger and stronger. Greenhouse gases are mainly composed of water vapor, carbon dioxide, methane, nitrogen oxides, freon and other components, among which the greenhouse effect of methane is 20 times that of carbon dioxide, and its concentration in the atmosphere is increasing rapidly. In addition, the study also predicts that with the massive emission of greenhouse gases, the global temperature will generally rise. At the same time, the earth's ecosystem will be threatened by the migration of ecosystems and agricultural belts in mid-latitude areas to the polar regions and the reduction of biodiversity, and the frequency of sudden climate disasters will increase, which will directly affect the survival and development of human beings.

In recent years, with the growth of global population and the intensification of human activities, more and more greenhouse gases have been released into the atmosphere, which has doubled the content of greenhouse gases in the atmosphere. Experts point out that these greenhouse gases will control the flow of natural energy through the climate system, thus affecting global climate change. In fact, all gases released into the atmosphere by human beings must be eliminated through natural processes, and the elimination process itself must be completed by destroying the existing climate, environment and ecosystem. Humans are becoming more and more aware of this. And in the list of victims of environmental degradation, no one is spared! Each of us is not only a victim of environmental pollution, but also a producer and controller of environmental pollution. Environmental protection is not only a slogan and a topic, but also a systematic science, a consciousness, an idea and a way of life. Environmental protection requires not only the government, experts and scholars, but also the extensive participation of the public.