What are the gases that produce the greenhouse effect?

Gases that can produce the greenhouse effect are currently considered to be carbon dioxide (CO2), ozone (O3), methane (CH4), and fluorochloroalkanes (trade name: freon).

But there are also those who believe that water vapor, cloud cover, and particulate matter in the atmosphere have the potential to counteract the greenhouse effect.

The main ones are carbon dioxide (CO2), methane, ozone, nitrous oxide, freon and water vapor.

Carbon dioxide gas has the function of heat absorption and heat insulation. As a result of its increase in the atmosphere, it forms an invisible glass cover that prevents the heat radiated by the sun to the Earth from being dissipated into outer space, and as a result, the Earth's surface heats up. As a result, carbon dioxide is also known as a greenhouse gas.

Other greenhouse gases are emitted by human activities and nature, which are: chlorofluorocarbons (CFCs), methane, low-altitude ozone, and nitrogen oxide gases, plankton in the oceans and forests on land, especially tropical rainforests, that can absorb large amounts of carbon dioxide on Earth.

Greenhouse gases:

Water vapor H2O, carbon dioxide CO2, nitrous oxide N2O, methane CH4 and ozone O3 are the main greenhouse gases in the Earth's atmosphere. In addition, there are many fully anthropogenic greenhouse gases in the atmosphere, such as halocarbons and other chlorine and bromine-containing substances covered by the Montreal Protocol. In addition to CO2, N2O and CH4, the Kyoto Protocol defines sulfur hexafluoride (SF6), hydrofluorocarbons (HFCs) (HFCs) and perfluorocarbons (PFCs) as greenhouse gases.

At present, carbon dioxide is the main gas that produces the greenhouse effect, but in addition to carbon dioxide, there are other gases, such as ozone (O3), methane (CH4), nitrous oxide (N2O), perfluorocarbons (PFCs), hydrofluorocarbons (HFCs), chlorofluorocarbons (HCFCS) and sulfur hexafluoride (SF6). 。

First, the gases that cause the greenhouse effect.

There are two main types of greenhouse gases that cause the enhancement of the greenhouse effect:

1.A gas that can absorb and emit infrared radiation, called a radioactive gas, includes carbon dioxide, methane, nitrous oxide and halogenated hydrocarbons and other long-lived gases that are uniformly mixed in the tropospheric atmosphere, as well as ozone with very different spatial and temporal distributions;

2.The other, which cannot or can only weakly absorb and emit infrared radiation, but can affect the concentration level of radioactive gases through chemical transformation, is called reactive gases, including nitrogen oxides, carbon monoxide, and volatile organic compounds. The greenhouse effect is caused by an increase in the amount of greenhouse gases (carbon dioxide, methane, etc.) in the atmosphere.

Second, the cause of the greenhouse effect:

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.

Third, the causes of the greenhouse effect:

1.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.

2.75% 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.

3.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.

4.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.

Fourth, the harm of the greenhouse effect:

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. Increase the carbon dioxide content, control population growth, use fuels scientifically, strengthen afforestation, green the land, and prevent the global catastrophe brought by the greenhouse effect.

Gases that cause the greenhouse effect, such as C02, methane, various hydrochlorofluorocarbons, ozone, and water vapor, are called greenhouse gases. The greenhouse effect, also known as the "flower house effect", is a common name for the atmospheric insulation effect. The atmosphere can cause the sun's short-wave radiation to reach the ground, but a large amount of long-wave thermal radiation emitted by the surface is absorbed by the atmosphere.

In this way, the surface and the low-level atmospheric atmosphere act like a greenhouse for cultivating crops, hence the name greenhouse effect. <>

Gases that cause the greenhouse effect, such as C02, methane, various hydrochlorofluorocarbons, ozone, and water vapor, are called greenhouse gases.

The content of water vapor in the atmosphere is higher than that of anthropogenic greenhouse gases such as CO2, which is the main gas responsible for the natural greenhouse effect. Studies have shown that in sunny weather in the mid-latitudes, water vapor accounts for 60% to 70% of the greenhouse effect, and CO2 accounts for only 25%.

However, the content of water vapor in the atmosphere is relatively stable, so it is generally believed that the water vapor in the atmosphere is not directly affected by human activities. With the development of human industrial and agricultural activities, the emissions of anthropogenic greenhouse gases, mainly CO2, are increasing year by year, so countries are mainly concerned about the emission of various anthropogenic greenhouse gases.

In particular, CO2 has become the largest contributor to the greenhouse effect, with fossil fuels accounting for CO2 of total greenhouse gas emissions.

The gas that creates the greenhouse effect is carbon dioxide.

CO2), methane.

CH4), nitrous oxide.

N2O), chlorofluorocarbons (CFCs) and ozone (O). Although water vapor (H2O) in the atmosphere is the main cause of the "natural greenhouse effect", it is generally believed that its composition is not directly affected by human activities.

The greenhouse effect, also known as the "flower house effect", is a common name for the atmospheric insulation effect. The atmosphere can make the short-wave radiation reach the ground, but a large number of long-wave thermal radiation rays released outward after the surface is heated are absorbed by the atmosphere, so that the surface and the low-level atmospheric atmosphere are similar to the greenhouse for cultivating crops, hence the name greenhouse effect.