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Green House Effect and Global Warming
The solar radiation is absorbed by the surface of land and ocean. In turn, they release infra red radiation or heat into the atmosphere. Certain gaseous molecules present in the atmosphere absorb the infra red rays and reradiate the heat in all directions. Hence, these gases maintain the temperature of earth’s surface. The gases which absorb these radiations are called green house gases and this effect is called green house effect.
The green house gases are CO2, N2O, CH4, CFC (Chlorofluoro carbon) etc. The increase in the levels of these gases results in the gradual increase of temperature of the earth’s surface. This green house effect is caused due to increase in the air pollutants and it results in the average increase of temperature of the atmosphere. This is called as Global warming.
Effects of Global warming
The following are the effects of global warming.
* Melting of ice cap and glaciers.
* Increase in frequency of floods, soil erosion and unseasonal rains.
* Loss of biodiversity due to the extinction of coral reefs and other key species.
* Spreading of waterborne and insectborne diseases.
In order to save the earth and its resources we need to take certain measures. Some of the measures are given below.
* Reducing in the use of fossil fuels.
* Controlling deforestation.
* Restricting the use of CFCs.
* Planting more trees.
* Reducing, reusing and recycling resources.
* Using renewable energy resources.
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