Greenhouse effect

Three major global problems for the environment today are greenhouse effects, ozone depletion and acid rain.

The greenhouse effect , derived from the French effet de serre , was first named in 1824 by the French mathematician Jean Baptiste Joseph Fourier through a strong explosion in the atmosphere, raising the temperature of an area. . In 1827, Joseph Fourier introduced the principle of explaining the phenomenon of the Greenhouse effect of great scientific interest. The greenhouse effect refers to the effect that occurs when the radiant energy of the sun's rays, through glass windows or roofs, is absorbed and dispersed back into the heat of the inner space. , which results in heating the entire interior space, not just in illuminated places.

Jean Baptiste Joseph Fourier - French mathematician and physicist.(1768 - 1830).(Photo: univ).

Through the study, the scientists explain: The greenhouse effect is the effect of warming the Earth's air due to the Sun's shortwave radiation passing through the atmosphere to the ground; The surface absorbs heat back to the long-wave radiation into the atmosphere to absorb CO2 so that the air heats up. CO2 in the atmosphere is like a layer of thick glass covering the Earth, making the Earth no different from a big greenhouse. According to calculations, if there is no atmospheric layer, the average temperature in the Earth's surface layer will drop to -23 degrees Celsius, but the actual average temperature is 15 degrees Celsius, which means that the greenhouse effect has Heat the Earth by 38 degrees C.

In addition to carbon dioxide, there are also methane, ozone, halogen and water vapor, which also have important effects on the greenhouse effect. Along with high population and industrial growth, carbon dioxide released into the atmosphere also increases. The forest was cut down too much, CO ₂ should have been absorbed by the forest, it was not absorbed, so the amount of CO ₂ was increasing, the greenhouse effect therefore increased continuously. According to the analysis over the past 200 years, CO ₂ concentration has increased by 25%, the average temperature of the Earth has increased to 0.5 degrees C. It is estimated that by the middle of the next century, the Earth's surface will be 1.5 times hotter. - 4.5 degrees C; in which the temperature in the middle and high latitudes increased.

The Sun's shortwave radiation can penetrate the atmosphere to the ground; The surface of the hot air is heated to the atmosphere so that CO _{2 is} absorbed, causing the air to warm up (Photo: climatechange).

The consequences of the greenhouse effect are very serious. The first is to make ecology big. The more the desert expands, the more eroded land is, the further the forest retreates to the polar regions, the drought is very severe, rainfall increases by 7-11%. The wetter the winter is, the more dry the summer is. The more humid the tropics become, the more drought-subtropical dry areas, making irrigation works to adjust again. The coastal area will be seriously threatened by natural disasters. As temperatures rise, polar ice sheets will melt, making the sea surface rise more than 1m. There is a scientist who thinks that, because the rising temperature will cause the volume of water to expand, the sea surface will rise 0.2-1.4m. Currently one-third of the world's population lives in coastal areas, which are also areas of agricultural development, if the rising sea surface will flood many cities and harbors.

The consequences of the greenhouse effect are very serious.

Global warming has made the whole world care. In November 1988, the United Nations Congress issued a resolution, stating that CO _{2 is} still increasing, probably causing global warming, rising sea levels to bring disaster to mankind, and calling on the whole world to try hard to "protect the climate for people today and tomorrow" .

Therefore, when we develop industrial production, we first need to actively treat air pollution, study the technology of converting CO2 into other substances, prevent methane, halogen, chlorine, fluorine, . not to release into the air.

The second is to protect trees well, actively plant forest trees, make CO2 convert into nutrients through the photosynthesis effect of trees.

Finally, by all means reduce the amount of oil and coal energy consumption, try to apply nuclear energy, solar energy, water and wind energy to reduce the amount of carbon dioxide released into the air.

What is the greenhouse effect?

The greenhouse effect refers to the effect that occurs when the radiant energy of the sun's rays, through glass windows or roofs, is absorbed and dispersed back into the heat of the inner space. , which results in heating the entire interior space, not just in illuminated places.

When does the greenhouse effect occur?

The greenhouse effect takes place when the gas atmosphere absorbs the aurora rays. The heat from the sun to Earth has been trapped in the troposphere, creating a greenhouse effect on the surface of planets or satellites.