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| Global Warming |
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| The addition of certain pollutants like the carbon dioxide gases increases the temperature of the earth. These gases remain close to the surface of earth, forming an insulating layer. The surface becomes hot due to the solar radiations. This radiation is normally reflected back into the space. However, due to the presence of the insulating layer the heat remains within the earth's atmosphere and increases its temperature. The reduction in the forest cover also contributes to the heating of earth. This is called global warming. |
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| Global warming results in the melting of polar ice caps which contributes to the rise in the level of water in the oceans. It is also called the greenhouse effect. Greenhouses are the covered areas where the temperature is artificially kept higher than the surrounding cold environment for the growth of plants. This is done by preventing the radiation from going out by having glass covers for the greenhouse. The gases that contribute to global warming are also called the greenhouse gases. |
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Environment and its Problems
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