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Pages 5 (1255 words)
The increase in the earth's mean temperature and its estimated continuation in the future is global warming. The effect of the greenhouse gases and many other causes lead to an increase in global warming at a very fast rate. The Intergovernmental Panel on Climate Change has detected that there has been a rise in the average global temperature and this has led to an unpredictable heating of the Earth's surface…
Estimates state that the sea levels by the end of the century can rise from 4" to 40" if global warming goes on without a stop. General awareness among the masses can only stop or at least decrease the phenomenon of global warming (The Intergovernmental Panel on Climate Change, 2007, p 2). "Is CO2 a pollutant inducing global warming'" is the question that several people have in their minds now.
Carbon dioxide emitted in the atmosphere by burning of fossil fuels mixes with the water vapour, which generally remains in the lower hemispheres. This emitted carbon dioxide does not allow the heat to be released into the higher layer of the atmosphere resulting in the entire earth been warmed up. This contributes to changes in the weather leading to catastrophic events, the outcome of which is loss of lives and property.
External respiration, also known as breathing, is the exchange of oxygen and carbon dioxide involving an animal and its environment. Exchange of gases amongst the environment and an animal takes place because of diffusion. Diffusion is the random movement of particles and induces the movement of molecules from an area of high concentration to an area of low concentration. ...
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