The global warming is a climatic problem of large extension. In the last 150 years, we can verify an increase of the global surface medium temperature. The meaning of this increase is under analysis by the world scientists.
A big part of the scientific comunity believes that the increasing concentration of human origin pollutants in the atmosphere is causing the greenhouse effect.
The earth receives radiation from the sun and returns most of it into space by radiation heat. The air pollutants retain a part of that radiation, that would be reflected into space, under normal conditions. But due to the increasement of air pollutants, much of the radiation that normaly would be reflected to space, stay at the atmosphere, heating earth more and more.
A big part of the scientific comunity believes that the increasing concentration of human origin pollutants in the atmosphere is causing the greenhouse effect.
The earth receives radiation from the sun and returns most of it into space by radiation heat. The air pollutants retain a part of that radiation, that would be reflected into space, under normal conditions. But due to the increasement of air pollutants, much of the radiation that normaly would be reflected to space, stay at the atmosphere, heating earth more and more.
By: Sandy Gomes
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