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SAVE TEH EARTH FROM GLOBAL WARMING

GLOBAL WARMING

SAVE THIS EARTH

       The average temperature of the earth has increased more than 1 degree Fahrenheit during the last century.  This increase in earth's temperature is called Global warming. More or less all the scientists are studying the climate record of the earth for the last many years  have the same opinion now that human actions, mainly the discharge of greenhouse gases from smoking, engines of the vehicles, mills, factories and burning forests are the reasons for global warming.  Global warming can be described as most dangerous thing to this planet i.e. our earth.  

CAUSE OF GLOBAL WARMING

The major cause of global warming is the emission of greenhouse gases like carbon dioxide, methane, nitrous oxide etc into the atmosphere. The major source of carbon dioxide is the power plants. These power plants emit large amounts of carbon dioxide produced from burning of fossil fuels for the purpose of electricity generation. About twenty percent of carbon dioxide emitted in the atmosphere comes from burning of petrol in the engines of the vehicles. Besides this the buildings, both commercial and residential represent a larger source of global warming pollution than cars and other vehicles.  

       Famous scientists of the world are making predictions about the dangerous effects of Global warming. The effect of global warming is increasing the average temperature of the earth. A rise in earth's temperatures can in turn increase the sea level. These changes can enhance the occurrence and concentration of severe climate events, such as floods, famines, heat waves, tornados, and  cyclones.  It is also seen that a large number of species have a threat of disappearing soon as an effect of global warming. Besides this different diseases are occurring frequently due to the increase in earths average temperature since the bacteria can survive better in elevated temperatures and even multiplies faster when the conditions are favorable.  The global warming is expected to cause drastic changes in the day to day behavior of animals.

Global Warming is increasing the earth's average temperature. The Green house gases are the main reason of the global warming. The green house gases like carbon dioxide, methane, and nitrous oxide are playing hazards in the present times.  The excessive emission of these gases is the major cause of global warming. The major source of carbon dioxide is the power plants. These power plants emit large amounts of carbon dioxide produced from burning of fossil fuels for the purpose of electricity generation. Coal is the major fuel that is burnt in these power plants. The coal gives out manifold percent carbon per unit of energy it produces as compared to natural gas. Another major source of carbon dioxide in the atmosphere is the emission from the cars and other vehicles. About twenty percent of carbon dioxide emitted in the atmosphere comes from the engines of the vehicles. This is true for most of the developed countries.  Besides this smokes coming out of factories, mills also plays an important role in enhancing the global warming. Methane is another major greenhouse gas after carbon dioxide, which causes global warming, it is more than 20 times as effectual as CO2 at entrapping heat in the atmosphere.

     Another major cause of global warming is deforestation. Deforestation is to be blamed for 25% of all carbon dioxide release entering the atmosphere, by the cutting and burning of about 34 million acres of trees each year. Trees collect the CO2 that we breathe out and provide us oxygen from various other sources, and they give back oxygen that we breathe in. Thus, cutting of trees is leading to greater concentration of carbon dioxide in the atmosphere. Greater urbanization, requirement of land for factories and buildings, requirement of timber are all reasons that are leading to deforestation, which in turn is leading to global warming.

EFFECTS OF GLOBAL WARMING

Global warming is caused by greenhouse gases.  These green house effect warming is called global warming. The effects of green house effect are visible more prominently in the recent years.

            The main causes for the global warming are attributed to release of green house gases. The main gases contributing to green house effect are carbon dioxide and  methane. The largest producers of these gases are the thermal power plants, which burn the fossil fuels and produce these gases in large quantities. The second biggest sources of these green house gases are car, buses, rails, mills, factories and smoking etc.  

The global warming has also led to increase in earth temperature and melting of polar ice. The frequent melt down of glaciers results in floods and other natural calamities. The melting of ice at the poles has increased the sea levels, which is very dangerous of the survival of low lying countries. The effect of global warming can be seen on seasons too. There is shift in season cycle, such as summers are getting longer than the winters.

The global warming is also responsible for the introduction of some new diseases. The bacteria are more effective and multiply much faster in warmer temperatures compared to cold temperatures. The increase in temperature has led to increase in the microbes that cause diseases. Global warming is causing loss to the crop production. The  floods and other natural calamities affect the crop.

 

Posted in Science.


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