What is the cause of the greenhouse effect?

The various greenhouse gases emitted into the atmosphere are responsible for the greenhouse effect.

The main causes include carbon dioxide.

Methane, nitrogen oxides, fluorinated gases, etc. In addition to this, various human behaviors such as deforestation, industrial gases, etc., as well as the growth of the population are also responsible for the greenhouse effect.

The essential cause of the greenhouse effect is the increase in carbon dioxide levels, which destroys the ozone layer and causes the temperature to rise. So what causes the increase in carbon dioxide? The first is the emission of automobile exhaust gases, the second is the emission of exhaust gases from some chemical factories and mines, and the third is the indiscriminate deforestation of people and the reduction of the number of forests.

1. In industrial production, excessive use of coal as fuel emits a large amount of carbon dioxide into the atmosphere.

2. Vehicles and household stoves burn a large amount of coal, oil, etc., and the emitted gas contains a large amount of carbon dioxide gas.

3. Humans have cut down a large number of forests, reducing the absorption of carbon dioxide by trees.

The greenhouse effect is caused by an increase in the amount of greenhouse gases (carbon dioxide, methane, etc.) in the atmosphere.

The air contains carbon dioxide, and the levels have remained largely constant for a long time in the past. This is due to the fact that carbon dioxide in the atmosphere is always in a state of dynamic equilibrium of "growth and consumption". 80% of the carbon dioxide in the atmosphere comes from the respiration of people and plants, and 20% comes from the combustion of fuels.

75% of the carbon dioxide scattered in the atmosphere is absorbed and dissolved in water by water on the ground such as oceans, lakes, rivers, and air precipitation. Another 5 percent of carbon dioxide is converted into organic matter through plant photosynthesis and stored. That's why the volume fraction of carbon dioxide as a percentage of air components has remained the same for many years.

However, in recent decades, due to the rapid increase in population and the rapid development of industry, the carbon dioxide produced by breathing and the combustion of coal, oil, and natural gas has far exceeded the levels of the past. On the other hand, deforestation has led to the creation of cities and factories on large amounts of farmland, destroying vegetation and reducing the conditions for converting carbon dioxide into organic matter. In addition, the gradual shrinking of surface waters and the greatly reduced precipitation have reduced the conditions for absorbing dissolved carbon dioxide, and destroyed the dynamic balance between carbon dioxide production and transformation, so that the carbon dioxide content in the atmosphere has increased year by year.

The increase in the amount of carbon dioxide in the air has changed the temperature of the earth.

Carbon dioxide prevents surface heat from radiating into space and has the function of regulating the earth's air temperature. Without carbon dioxide, the Earth's average annual temperature would be 20 percent lower than it is today. However, if the carbon dioxide content is too high, the earth will feel like it is in a pot, and the temperature will gradually rise, forming a "greenhouse effect".

Gases that form the greenhouse effect, in addition to carbon dioxide, there are other gases. Among them, carbon dioxide accounts for about 75, chlorofluoroalkane accounts for about 15% 20, and there are more than 30 kinds of methane and nitric oxide.

The greenhouse effect is a phenomenon in which the global temperature rises due to an increase in the amount of carbon dioxide and other gases in the atmosphere. If carbon dioxide levels were to double what they are now, global temperatures would rise by 3.5 and the poles could rise by 10 and the climate would warm significantly. Rising temperatures will lead to increased rainfall in some areas, drought in some areas, increased intensity and frequency of hurricanes, and intensification of natural disasters.

More worryingly, many coastal cities, islands or low-lying areas will be threatened by seawater** or even swallowed by seawater due to rising temperatures, which will melt glaciers in the polar regions and raise sea levels. At the end of the sixties of the twentieth century, there was a drought in the pastoral areas of the lower Sahara of Africa that lasted for six years. Livestock were slaughtered due to a lack of food and pasture, and more than 1.5 million people died of starvation.

This is a classic example of the "greenhouse effect" that has brought disaster to mankind. Therefore, it is necessary to effectively control the increase in carbon dioxide content, control population growth, use fuel scientifically, strengthen afforestation, green the earth, and prevent the global catastrophe brought by the greenhouse effect.