What is the reason for the hot weather?

Greenhouse effect The greenhouse effect, also known as the "greenhouse effect", is a common name for the atmospheric heat preservation effect. The atmosphere can make the short-wave radiation of the sun reach the ground, but the long-wave radiation emitted by the ground is absorbed by the atmosphere, which raises the temperature of the ground and the lower atmosphere. Because its function is similar to the greenhouse for cultivating crops, it is named the greenhouse effect. If this effect does not exist in the atmosphere, the surface temperature will drop by about 3 degrees or more. On the other hand, if the greenhouse effect continues to strengthen, the global temperature will continue to rise year by year. Since the industrial revolution, carbon dioxide and other heat-absorbing greenhouse gases emitted into the atmosphere by human beings have increased year by year, and the greenhouse effect of the atmosphere has also been enhanced, which has caused a series of serious problems such as global warming and attracted the attention of all countries in the world. The greenhouse effect caused by environmental pollution refers to the phenomenon that the earth's surface becomes hot. It will bring the following serious consequences: 1) the increase of pests and diseases and infectious diseases on the earth; 2) sea level rise; 3) Abnormal climate, increasing ocean storms; 4) The land is dry and the desertification area increases. How is the greenhouse effect produced? What can we do? The greenhouse effect is mainly caused by excessive burning of coal, oil and natural gas in modern industrial society, which releases a lot of carbon dioxide gas into the atmosphere after burning. Carbon dioxide gas has the functions of heat absorption and heat insulation. The result of its increase in the atmosphere is the formation of an invisible glass cover, which prevents the heat radiated by the sun to the earth from spreading to outer space, and as a result, the surface of the earth becomes hot. Therefore, carbon dioxide is also called greenhouse gas. Human activities and nature also emit other greenhouse gases, such as chlorofluorocarbons (CFCs), methane, low-level ozone and nitrogen oxides. On earth, plankton in the ocean and forests on land, especially tropical rainforests, can absorb a lot of carbon dioxide. In order to reduce the excessive carbon dioxide in the atmosphere, on the one hand, people need to save electricity as much as possible (because power generation needs to burn coal) and drive less cars; What can absorb a lot of carbon dioxide on the earth are plankton in the ocean and forests on land, especially tropical rainforests. Therefore, on the other hand, we should protect forests and oceans, such as not cutting down forests and polluting the oceans, in order to protect the survival of plankton. We can also protect green plants by planting trees, reducing the use of disposable wooden chopsticks, saving paper (paper-making wood) and not trampling on the lawn, so that they can absorb more carbon dioxide and help slow down the greenhouse effect. Greenhouse gases effectively absorb infrared radiation emitted by the same gases and clouds on the earth's surface and the atmosphere itself. Atmospheric radiation is emitted in all directions, including to the surface of the earth below. Greenhouse gases absorb heat in the ground-troposphere system. This is called "natural greenhouse effect". Atmospheric radiation is closely related to the temperature level of its gas emission. In the troposphere, the temperature generally decreases with the increase of altitude. Infrared radiation emitted into space from a certain height is generally generated at a height with an average temperature of-19℃, and the temperature of the earth's surface can be kept at an average temperature of 1 4℃ due to the income balance of solar radiation. The increase of greenhouse gas concentration leads to the enhancement of atmospheric opacity to infrared radiation, which leads to the emission of effective radiation into space from lower temperature and higher altitude. This creates radiation forcing, which can only be compensated by the temperature rise of the ground-troposphere system. This is the "enhanced greenhouse effect". /